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.
Washington, D.C., circa 1921. "Acme Card System Co." Another look at this pioneering indexing and filing system, as well as a rare glimpse at the day job of one Miss O. Oyl. Seen here recording an order for magnetic birdseed. National Photo Company Collection glass negative. View full size.