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.

1910 Irving Underhill photo of the 22-story Flatiron (Fuller) Building at 175 Fifth Avenue, one of the earliest (1902) buildings in New York to attain such heights. View full size. More here.
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