Three-inch A.A. cartridge cases. Cartridge cases for three-inch antiaircraft shells are produced by a series of operations that transform a flat brass disc into a case ready for loading with propelling charge and shell. Between each operation there is careful washing to remove all scale and adhesion and to leave surfaces clean for later processing. The big Midwest plant doing the work is well equipped to handle it in stride

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

ohio safety film negatives stow ohio three inch cartridge cases cartridge cases antiaircraft shells antiaircraft shells series operations brass disc brass disc case charge scale adhesion surfaces midwest plant midwest plant work stride united states history industrial history factory workers library of congress

01/01/1942

Library of Congress

http://www.loc.gov/

Public Domain