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Group of American congressmen visiting the Ordnance Works, Calais, Fra...
British Photographs of World War I Public domain photograph - British army, military forces, during World War One, free to use, no copyright restrictions image - Picryl description
Ammonia Oxidation Plant at Plum Brook Ordnance Works
An ammonia oxidation plant at the Plum Brook Ordnance Works near Sandusky, Ohio, which later became the National Aeronautics and Space Administration’s (NASA) Plum Brook Station. During World War II the ordnanc... More
Plum Brook's Lake Erie pumping station
Plum Brook had two pumping stations to obtain raw water from nearby Lake Erie. The reactor required one million gallons of water daily for cooling, shielding, and dilution of radiation. The main one was at Rye ... More