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:

February 1907. Washington, D.C. "Post Office." This space is now a food court in the Old Post Office Pavilion on Pennsylvania Avenue. In just a few years the P.O. would decamp for a bigger facility near Union Station. View full size.

Washington, D.C., circa 1915. "Post Office Department." The Mail Equipment Shops last glimpsed here. Harris & Ewing glass negative. View full size.

New York circa 1900. "Chinatown -- Mott Street." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Washington, D.C., 1919. "Mack Sennett girls." Producer Mack Sennett's comedy reels featured a bevy of "bathing beauties," among them Marvel Rea, seen here in the harlequin costume. More on these ladies here. | View full size.

Washington, D.C., circa 1926. "Thos. R. Shipp Co. -- A.A. Anselmo stand, Center Market." Delectable produce from all points of the compass, fetchingly arrayed. National Photo Company Collection glass negative. View full size.

Washington, D.C., 1924. "Ford Motor Co. -- Lincoln at Capitol." The Great Transportator. National Photo Company glass negative. View full size.

September 6, 1922. Washington, D.C. "Miss Elizabeth U. Hoffman." Last spied here four years ago, Miss H. is still stuck in this institutional-looking kitchen. National Photo Company Collection glass negative. View full size.