Antiaircraft gun carriage. A worker tests the smooth working precision of the elevating mechanism assembly of a thirty-seven-millimeter anti-aircraft gun carriage. Planes of 300 miles an hour and better present a fast-moving target which requires precision operation in the anti-aircraft gun that must follow their flight to protect America's lives and property. War program production scene in a Pennsylvania heavy industry plant. AETNA. Ellwood City, Pennsylvania
Summary
Picryl description: Public domain image of an industrial building interior, power generator, furnace, boiler, 20th-century architecture, free to use, no copyright restrictions.
Tags
Date
01/01/1941
Contributors
Palmer, Alfred T., photographer
United States. Office for Emergency Management.
Location
ellwood city
Source
Library of Congress
Copyright info
Public Domain