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.

Plate 31 from 1909 Baist's Real Estate Atlas. This shows the original street layout in the area that would eventually become Federal Triangle. Of note to Shorpy photographs is the location of Louisiana Avenue, Center Market, and the Old Post Office.
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