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.

Circa 1864-1865. "Jacksonville, Florida, signal tower." Wet plate glass negative from "photographs of the Federal Navy, and seaborne expeditions against the Atlantic Coast of the Confederacy, specifically of Florida." View full size.
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