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.
1865. "Charleston, South Carolina. View from roof of Orphan Asylum. The Citadel in middle distance." From photographs of the Federal Navy and seaborne expeditions against the Atlantic Coast of the Confederacy, 1863-1865. Wet plate glass negative, half of stereo pair, photographer unknown. View full size.