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. "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.