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.

December 1942. Locomotives over the ash pit at the roundhouse and coaling station of the Chicago & North Western Railroad yards. View full size. 4x5 Kodachrome transparency by Jack Delano, Office of War Information.
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