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:
Nineteenth-century townscape with an overlay of automobile.
March 27, 1934. "Auburn, Placer County, California. General view of fire house and commercial buildings at Grass Valley and Sacramento Roads." Photo by Roger Sturtevant for the Historic American Buildings Survey. View full size.