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:
UPDATE: This is, as far as the Shorpy Research Department can tell, from a series of photos taken by Andreas Feininger in June 1942 at the East Hartford, Conn., engine manufacturing plant of Pratt & Whitney Aircraft.
Circa 1942. We've lost the caption for this photo of a lady operating yet another War-Winning Widget in Factorytown, USA. What is she making? View full size.