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:
March 1943. Summit, California. "Brakeman opening the retainer valve on a car on the Atchison, Topeka and Santa Fe Railroad between Barstow and San Bernardino. From here to San Bernardino is one long downgrade of more than 2,700 feet." Photo by Jack Delano, Office of War Information. View full size.