Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.
Vintage photos of:
1942. Chrysler Corporation plant at Highland Park, Detroit. "Applying automobile production methods to machining of 40 mm. anti-aircraft gun barrels in a former automobile plant. Five cutting instruments work at the same time. Under the old single-operation methods of gunmaking, only one of these could work at one time. Automobile workers are proud of the improvement." Medium format safety negative by Alfred Palmer for the Office of War Information. View full size.
1942. Chrysler Corporation plant at Highland Park, Detroit. "Conversion. Here, in a former automobile plant, 40 mm. anti-aircraft gun barrels are machined and made ready for front-line duty. Since they must shoot fast-moving objects at great distances, they must be finished to the very finest of tolerances." Medium format negative by Alfred Palmer for the Office of War Information. View full size.