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859 media by topic ∙ page 1 of 9
Doorway from Notre-Dame at Reugny

Doorway from Notre-Dame at Reugny

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

The Cloisters - Doorway, The Cloisters

The Cloisters - Doorway, The Cloisters

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Chapel from Notre-Dame-du-Bourg at Langon

Chapel from Notre-Dame-du-Bourg at Langon

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

The Cloisters - Chapel from Notre-Dame-du-Bourg at Langon

The Cloisters - Chapel from Notre-Dame-du-Bourg at Langon

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

The Cloisters - Portal from the Church of San Leonardo al Frigido

The Cloisters - Portal from the Church of San Leonardo al Frigido

Public domain photo of a monument, historic place, classical or archaic, free to use, no copyright restrictions image - Picryl description. The Annunciation is a biblical event in which the angel Gabriel appea... More

Doorway from Abbey of Notre-Dame at Nevers

Doorway from Abbey of Notre-Dame at Nevers

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, 12th century, Burgundy, France

Doorway, 12th century, Burgundy, France

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Reconstructed Portal, Spain, The Cloisters

Reconstructed Portal, Spain, The Cloisters

Public domain photo of a 3d object, Europe, free to use, no copyright restrictions image - Picryl description

Reconstructed Portal, 12th century, Metropolitan Museum of Art

Reconstructed Portal, 12th century, Metropolitan Museum of Art

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, Burgundy, France, Burgundy, France

Doorway, Burgundy, France, Burgundy, France

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

King Clothar I, The Cloisters - Public domain dedication museum photo

King Clothar I, The Cloisters - Public domain dedication museum photo

A statue of a man holding a book, France, free to use, no copyright restrictions image - Picryl description

Lancet Window, Normandy, France, Metropolitan Museum of Art

Lancet Window, Normandy, France, Metropolitan Museum of Art

A church with two stained glass windows and a stone bench, France, free to use, no copyright restrictions image - Picryl description

Lancet Window, Normandy, France, Metropolitan Museum of Art

Lancet Window, Normandy, France, Metropolitan Museum of Art

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Lancet Window, Normandy, France, Metropolitan Museum of Art

Lancet Window, Normandy, France, Metropolitan Museum of Art

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

King Clovis I, Burgundy, France

King Clovis I, Burgundy, France

Public domain photo of Antique sculpture, Europe, 14th century, free to use, no copyright restrictions image - Picryl description.

King Clothar I - Public domain dedication museum photo

King Clothar I - Public domain dedication museum photo

Public domain photo of Antique sculpture, Europe, 14th century, free to use, no copyright restrictions image - Picryl description.

Window with Flamboyant Tracery - Public domain dedication museum photo

Window with Flamboyant Tracery - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Three Sections of Cloister Arcade

Three Sections of Cloister Arcade

Made in Froville, Lorraine, France Public domain reproduction of artwork in Metropolitan Museum of Art, free to use, no copyright restrictions image - Picryl description

Window, 14th century, Burgundy, France

Window, 14th century, Burgundy, France

A window in a stone building with decorative glass, France, free to use, no copyright restrictions image - Picryl description

Window with Flamboyant Tracery - Public domain dedication museum photo

Window with Flamboyant Tracery - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, 14th century, Burgundy, France

Doorway, 14th century, Burgundy, France

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Window with Flamboyant Tracery - Public domain dedication museum photo

Window with Flamboyant Tracery - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Window, 14th century - Public domain dedication museum photo

Window, 14th century - Public domain dedication museum photo

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Window with Flamboyant Tracery - Public domain dedication museum photo

Window with Flamboyant Tracery - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, 14th century, Burgundy, France

Doorway, 14th century, Burgundy, France

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Three Sections of Cloister Arcade

Three Sections of Cloister Arcade

Made in Froville, Lorraine, France Public domain reproduction of artwork in Metropolitan Museum of Art, free to use, no copyright restrictions image - Picryl description

Doorway, 14th century, Burgundy, France

Doorway, 14th century, Burgundy, France

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Three Sections of Cloister Arcade

Three Sections of Cloister Arcade

Made in Froville, Lorraine, France Public domain reproduction of artwork in Metropolitan Museum of Art, free to use, no copyright restrictions image - Picryl description

Doorway, 14th century - Public domain dedication museum photo

Doorway, 14th century - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, 14th century, The Cloisters

Doorway, 14th century, The Cloisters

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Unicorn Doorway, 15th century - Public domain dedication museum photo

Unicorn Doorway, 15th century - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, 15th century - Public domain dedication museum photo

Doorway, 15th century - Public domain dedication museum photo

Made in Meurth-et-Moselle, Lorraine, France Public domain photograph of French art object, free to use, no copyright restrictions image - Picryl description Public domain photograph of French art object, free... More

Window, 15th century, Burgundy, France

Window, 15th century, Burgundy, France

Made in Burgundy, France Public domain photograph of French art object, free to use, no copyright restrictions image - Picryl description Public domain photograph of French art object, free to use, no copyrig... More

Gothic Doorway, 16th century - Public domain dedication museum photo

Gothic Doorway, 16th century - Public domain dedication museum photo

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Gothic Doorway, 16th century - Public domain dedication museum photo

Gothic Doorway, 16th century - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, France - Public domain dedication museum photo

Doorway, France - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, Burgundy - Public domain dedication museum photo

Doorway, Burgundy - Public domain dedication museum photo

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Lancet Window Normandie - Public domain dedication museum photo

Lancet Window Normandie - Public domain dedication museum photo

Made in Normandy, France Public domain photograph of French art object, free to use, no copyright restrictions image - Picryl description Public domain photograph of French art object, free to use, no copyrig... More

Lancet Window Normandie - Public domain dedication museum photo

Lancet Window Normandie - Public domain dedication museum photo

Made in Normandy, France Public domain photograph of French art object, free to use, no copyright restrictions image - Picryl description Public domain photograph of French art object, free to use, no copyrig... More

Doorway, France - Public domain dedication museum photo

Doorway, France - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Doorway, Burgundy - Public domain dedication museum photo

Doorway, Burgundy - Public domain dedication museum photo

Public domain photo of a 3d object, France, free to use, no copyright restrictions image - Picryl description

Lancet Window Normandie - Public domain dedication museum photo

Lancet Window Normandie - Public domain dedication museum photo

Made in Normandy, France Public domain photograph of French art object, free to use, no copyright restrictions image - Picryl description Public domain photograph of French art object, free to use, no copyrig... More

Double-Lancet Window - Public domain dedication museum photo

Double-Lancet Window - Public domain dedication museum photo

Public domain photograph of 3d object, free to use, no copyright restrictions image - Picryl description.

Portal from the Church of San Leonardo al Frigido

Portal from the Church of San Leonardo al Frigido

Public domain photo of a monument, historic place, classical or archaic, free to use, no copyright restrictions image - Picryl description.

[Map of Cumberland Gap and surrounding area in Tennessee, Virginia, and Kentucky showing defenses, military installations, and roads.]

[Map of Cumberland Gap and surrounding area in Tennessee, Virginia, an...

"Fortifications Map File" Plans of Military Forts

Map showing proposed waterfront improvements, terminals & railroad installations : at South Brooklyn, Gowanus Bay, and Erie Basin, borough of Brooklyn /

Map showing proposed waterfront improvements, terminals & railroad ins...

"February 1911." Oriented with north toward the lower left. "Reproduced from report issued by New York Dock Department." Removed from textual publication. Available also through the Library of Congress Web site... More

A black and white photo of a road and trees Camouflaged road observation posts, transportation traffic.

A black and white photo of a road and trees Camouflaged road observati...

A collection of photographs of the trees and a bridge / A collection of photographs from the early 1900s public domain stock photo. A collection of photographs of the trees and a bridge / A collection of photo... More

The first radio beacon is inaugerated. An executive photograph showing Dr. George K. Burgess, Director fo the United States Bureau of Standards, and the aircraft radio beacon at College Park, Maryland, designed for guiding airplanes by radio. This is the first radio beacon for use of civil aviation and this station is bur a forerunner of 40 other similar installations to be established at 200-mile intervals along the 8,234 miles of civil airways

The first radio beacon is inaugerated. An executive photograph showing...

A black and white photo of a man in a kitchen. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

One of the TVA's (Tennessee Valley Authority) switchyards near Memphis, Tennessee. While such installations tend to be clearcut and orderly in the nature of their layouts, the TVA also puts particular stress on the minor buildings which occur in conjuction with them, as demonstations of architectural design generally applicable to smaller structures

One of the TVA's (Tennessee Valley Authority) switchyards near Memphis...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Chickamauga Dam and powerhouse. Main control room and partial view of balcony in front of it (compare with end wall in K 2304). Large glass panels permit observation by visitors and view of plant by control room operators. Ceiling of control room is assymmetric barrel vault with acoustic tile surface; all light is indirect from reflectors above low soffit along front of room. In more recent installations, control equipment is gray instead of black to reduce eye fatigue by lessening contrast

Chickamauga Dam and powerhouse. Main control room and partial view of ...

The Chickamauga Dam is a hydroelectric dam on the Tennessee River in Chattanooga, Tennessee. It is one of nine dams in the Tennessee Valley Authority (TVA) system, and was completed in 1940. The dam is named af... More

Chickamauga Dam and powerhouse. Main control room and partial view of balcony in front of it (compare with end wall in K 2304). Large glass panels permit observation by visitors and view of plant by control room operators. Ceiling of control room is assymmetric barrel vault with acoustic tile surface; all light is indirect from reflectors above low soffit along front of room. In more recent installations, control equipment is gray instead of black to reduce eye fatigue by lessening contrast

Chickamauga Dam and powerhouse. Main control room and partial view of ...

The Chickamauga Dam is a hydroelectric dam on the Tennessee River in Chattanooga, Tennessee. It is one of nine dams in the Tennessee Valley Authority (TVA) system, and was completed in 1940. The dam is named af... More

One of the TVA's (Tennessee Valley Authority) switchyards near Memphis, Tennessee. While such installations tend to be clearcut and orderly in the nature of their layouts, the TVA also puts particular stress on the minor buildings which occur in conjuction with them, as demonstations of architectural design generally applicable to smaller structures

One of the TVA's (Tennessee Valley Authority) switchyards near Memphis...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Track damage in the Ostiense railroad yards as shown in a reconnaissance photo. In the background a monastery stands intact, untouched by bombs directed against military installations

Track damage in the Ostiense railroad yards as shown in a reconnaissan...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

A Nazi bridge is put out of commission. Black smoke engulfs a railway bridge on the line from Florence to Rome after it was straddled by bombs. For two months Allied bombers pounded German railroad installations forcing the enemy to depend increasingly upon cargo vessels and motor vehicles for transportation

A Nazi bridge is put out of commission. Black smoke engulfs a railway ...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Night raid in Bizerte. LCIs put up a screen of anti-aircraft fire from their 20mm guns during a raid of enemy planes on Allied installations in Bizerte.

Night raid in Bizerte. LCIs put up a screen of anti-aircraft fire from...

Public domain photograph of a ship, free to use, no copyright restrictions image - Picryl description

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber, called the Boston by the British, is used by both the American Air Force and the Royal Air Force. It was designed as an attack bomber for hedge hopping and strafing operations against ground troops and installations. Because of the speed and performance abilities of this plane, the British have converted a number for use as night fighters. Some have also been used for reconnissance work. Armament details vary according to use, light and heavy guns being mounted in varying combinations

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber,...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Towing installations on P-51 and P-61 airplanes for propeller off tests on the P-51. Rear view of P-61 in towing position preparing for take off at NACA Ames Research Center, Moffett Field, California ARC-1944-AA-6374

Towing installations on P-51 and P-61 airplanes for propeller off test...

Towing installations on P-51 and P-61 airplanes for propeller off tests on the P-51. Rear view of P-61 in towing position preparing for take off at NACA Ames Research Center, Moffett Field, California

Towing installations on P-51 airplane for propeller off tests on the P-51 Front view of P-51 in towing position with P-61A preparing for take off at NACA Ames Research Center, Moffett Field, California ARC-1944-AAL-6373

Towing installations on P-51 airplane for propeller off tests on the P...

Towing installations on P-51 airplane for propeller off tests on the P-51 Front view of P-51 in towing position with P-61A preparing for take off at NACA Ames Research Center, Moffett Field, California

Towing installations on P-51 and P-61 airplanes for propeller off tests on the P-51 Front view of P-51 & P-61 in towing position preparing for take off at NACA Ames Research Center, Moffett Field, California ARC-1944-AAL-6371

Towing installations on P-51 and P-61 airplanes for propeller off test...

Towing installations on P-51 and P-61 airplanes for propeller off tests on the P-51 Front view of P-51 & P-61 in towing position preparing for take off at NACA Ames Research Center, Moffett Field, California

Antiaircraft gun carriage. Assembling the traversing gear and bearing on a thirty-seven millimeter antiaircraft gun carriage. These precision-built ball bearing installations are vitally important, for on their unfailing smooth operation depends the gunners' ability to follow his swiftly moving target. War program production scene in one of Pennsylvania's heavy industry plants now converted to the production of vitally needed military equipment. AETNA. Ellwood City, Pennsylvania

Antiaircraft gun carriage. Assembling the traversing gear and bearing ...

Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description

Antiaircraft gun carriage. The traversing bearing is installed on a thirty-seven millimeter antiaircraft gun carriage as it moves down the assembly line. These precision-built ball bearing installations are vitally important, for on their unfailing smooth action depends the gunners' ability to follow his rapidly moving target. War program production scene in one of Pennsylvania's heavy industry plants now converted to the production of vitally needed military equipment. AETNA. Ellwood City, Pennsylvania

Antiaircraft gun carriage. The traversing bearing is installed on a th...

Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description

Aircraft at Hickam Field, Hawaii (HI) continue to burn and explode, in the immediate aftermath of the bombing of Pearl Harbor and other military installations

Aircraft at Hickam Field, Hawaii (HI) continue to burn and explode, in...

The original finding aid described this photograph as: Base: Hickam Field State: Hawaii (HI) Country: United States Of America (USA) Scene Camera Operator: Unknown Release Status: Released to Public Combin... More

Production. Steam power plant equipment. Electric arc-welders run a long seam on a new high-pressure boiler. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Electric arc-welders run a lo...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Production. Pratt and Whitney airplane engines. Twin rows of partial power section assemblies for Pratt and Whitney airplane engines form an interesting pattern on the floor of a large Eastern plant now producing great numbers of power installations for our fighting aircraft. Pratt and Whitney Aircraft

Production. Pratt and Whitney airplane engines. Twin rows of partial p...

Public domain photograph of manufacturing, industry, free to use, no copyright restrictions image - Picryl description

Production. Steam power plant equipment. Grinding an inside girth seam on a heat exchanger for a high-pressure boiler. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Grinding an inside girth seam...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Nashville, Tennessee. "Vengeance" bomber on the field for final installations at the Vultee Aircraft Corporation plant

Nashville, Tennessee. "Vengeance" bomber on the field for final instal...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. A boilermaker at TVA's Watts Bar steam plant, employed in the erection of condensers. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. A boile...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. The Tennessee Valley Authority engineer establishes a line during the construction of the Watts Bar steam plant. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. The Ten...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Production. Pratt and Whitney airplane engines. Crankshaft assembles for Pratt and Whitney airplane engines must undergo a rigid inspection in a large Eastern war plant now working full tilt to supply our armed forces with power installations for our war planes. Pratt and Whitney Aircraft

Production. Pratt and Whitney airplane engines. Crankshaft assembles f...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Production. Pratt and Whitney airplane engines. A power section assembly is lowered to blower case assembly as another Pratt and Whitney airplane engine begins to take form at a large Eastern plant producing great numbers of power installations for our fighting aircraft. Pratt and Whitney Aircraft

Production. Pratt and Whitney airplane engines. A power section assemb...

Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. One of four tube-generating units which produce electric power at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. One of ...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

The Douglas A-24 (Dauntless) light dive bomber, is the Army counterpart of the Navy SBD, with certain modifications to meet Army requirements. It was designed for dive-bombing operations against ground troops and installations. It is equipped with slotted diving flaps to decrease air speed and obtain greater accuracy. The Dauntless is more maneuverable than the German Stuka and is capable of carrying heavier bomb loads

The Douglas A-24 (Dauntless) light dive bomber, is the Army counterpar...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. An ironworker climbs a 16-foot by 60-foot stack at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. An iron...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Production. Steam power plant equipment. Looking down a drilling and finishing bay of a plant engaged in the production of high-pressure boilers. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Looking down a drilling and f...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Production. Steam power plant equipment. Electric arc-welders run a long seam on a new high-pressure boiler. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Electric arc-welders run a lo...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Production. Steam power plant equipment. A workman in a manhole of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. A workman in a manhole of a h...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Women aircraft workers. The epitone of determination and industry is personified in these two women employees of a large West Coast airplane factory. Down underneath a giant bomber, a woman electrician and her helper are making electical installations in the bomb bay. Vega

Women aircraft workers. The epitone of determination and industry is p...

Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber, called the Boston by the British, is used by both the American Air Force and the Royal Air Force. It was designed as an attack bomber for hedge hopping and strafing operations against ground troops and installations. Because of the speed and performance abilities of this plane, the British have converted a number for use as night fighters. Some have also been used for reconnissance work. Armament details vary according to use, light and heavy guns being mounted in varying combinations

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber,...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. Steam power plant equipment. Welding a nozzle on a new high-pressure boiler by electric arc method. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Welding a nozzle on a new hig...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Production. Steam power plant equipment. Operator at the control valve of a 6,000-ton hydraulic press on which parts for high-pressure boilers are formed. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Operator at the control valve...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

The Douglas A-24 (Dauntless) light dive bomber, is the Army counterpart of the Navy SBD, with certain modifications to meet Army requirements. It was designed for dive-bombing operations against ground troops and installations. It is equipped with slotted diving flaps to decrease air speed and obtain greater accuracy. The Dauntless is more maneuverable than the German Stuka and is capable of carrying heavier bomb loads

The Douglas A-24 (Dauntless) light dive bomber, is the Army counterpar...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. Steam power plant equipment. This lever operates a control valve on a 6,000-ton hydraulic press on which parts for high-pressure boilers are formed. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. This lever operates a control...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Production. Steam power plant equipment. Preparing a power plant air heater for testing. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Preparing a power plant air h...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

North American employees make additional installations on a P-51 fighter as it moves down the long final assembly line

North American employees make additional installations on a P-51 fight...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Royal Air Force Bostons in daylight raid on Saint Malo. Boston bomber, escorted by fighters, on July 31 carried out successful attack in daylight on harbour works and installations at Saint Malo, and returned with photographs providing evidence that their bombs were well in the target area. At least sixteen bombursts can be seen in and around the bassin Dunguay Trouin, eleven in, or adjecent to, a builders' yard. Of the bursts in the bassin itself, one is a near miss on a 300 foot motor vessel, another a near miss on three barges on the opposite side of the bassin, and a third is either on the stern or on the quay alongside a motor vessel of 250-300 feet

Royal Air Force Bostons in daylight raid on Saint Malo. Boston bomber,...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parris Island, South Carolina. Tactical formations of barrage balloons prevent dive bombing and the strafing of important ground installations. The Leathernecks are developing an excellent technique in this method of protecting important locations from enemy aircrafts

Parris Island, South Carolina. Tactical formations of barrage balloons...

Picryl description: Public domain image of an early aircraft, balloon, airship, free to use, no copyright restrictions.

Production. Steam power plant equipment. Oiling a horizontal boring mill used in machining parts for new high-pressure boilers. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Oiling a horizontal boring mi...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Production. Steam power plant equipment. Chipping away excess metal on a girth seam of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Chipping away excess metal on...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Parris Island. Marine Corps barrage balloons. The leathernecks make a strong medicine against Axis aircraft. Special marine units in training at Parris Island, South Carolina send up part of a tactical formation of barrage balloons that prevent dive bombing and the strafing of important ground installations

Parris Island. Marine Corps barrage balloons. The leathernecks make a ...

Picryl description: Public domain image of an early aircraft, balloon, airship, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. An ironworker employed on the erection of stacks and breechings at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. An iron...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Parris Island, South Carolina. Tactical formations of barrage balloons prevent dive bombing and the strafing of important ground installations. The Leathernecks are developing an excellent technique in this method of protecting important locations from enemy aircraft

Parris Island, South Carolina. Tactical formations of barrage balloons...

Picryl description: Public domain image of an early aircraft, balloon, airship, free to use, no copyright restrictions.

Production. Steam power plant equipment. Cylinder and piston of a 6,000-ton hydraulic press used to form parts for high-pressure boilers. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Cylinder and piston of a 6,00...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Production. Steam power plant equipment. A cone for a new high-pressure boiler is formed on a gooseneck press. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. A cone for a new high-pressur...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber, called the Boston by the British, is used by both the American Air Force and the Royal Air Force. It was designed as an attack bomber for hedge hopping and strafing operations against ground troops and installations. Because of the speed and performance abilities of this plane, the British have converted a number for use as night fighters. Some have also been used for reconnissance work. Armament details vary according to use, light and heavy guns being mounted in varying combinations

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber,...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. Steam power plant equipment. Excess metal is chipped away on a welded seam on the inside of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Excess metal is chipped away ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Production. Steam power plant equipment. A header for a new high-pressure boiler is drilled through a jig. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. A header for a new high-press...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. One of four turbo-generating units produce electric power at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installations at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. One of ...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Production. Steam power plant equipment. Excess metal is chipped away on a welded seam on the inside of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Excess metal is chipped away ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber, called the Boston by the British, is used by both the American Air Force and the Royal Air Force. It was designed as an attack bomber for hedge hopping and strafing operations against ground troops and installations. Because of the speed and performance abilities of this plane, the British have converted a number for use as night fighters. Some have also been used for reconnissance work. Armament details vary according to use, light and heavy guns being mounted in varying combinations

Douglas military aircraft Army. The Douglas A-20 (Havoc) light bomber,...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. Pratt and Whitney airplane engines. Single-row crankshaft assemblies for Pratt and Whitney airplane engines. The large Eastern plant at which the work is done is producing a steady flow of power installations for the fighting craft of our Army and Navy air forces. Pratt and Whitney Aircraft

Production. Pratt and Whitney airplane engines. Single-row crankshaft ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

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