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:
Boys salvaging coal from the slag heaps at Nanty Glo, Pennsylvania. 1937. They get 10 cents for each hundred-pound sack. View full size. Photo by Ben Shahn.