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:
December 1941. "Treads for Army halftracks, made of rubber firmly bonded to steel members, are cured under heat and pressure in molds which are first sprayed with a lubricant. Goodrich tire plant, Akron, Ohio." View full size. 4x5 nitrate negative by Alfred Palmer for the Office of War Information.