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.
"Express Strike, New York City." In 1910, wagon drivers for Adams Express, American Express, Wells Fargo and other delivery companies went on strike, leading to riots and rock-throwing when the strike-breakers were called in. 5x7 glass negative, George Grantham Bain Collection. View full size.