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:
Washington, D.C., circa 1925. "Panama Legation, New Hampshire Avenue and Q Street N.W." 18th Street is on the left and New Hampshire Avenue on the right. This is one of the earliest examples of a stop sign ("Boulevard Stop") in the archive. National Photo Company Collection glass negative. View full size.