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.

Washington circa 1863. Wounded soldiers at Harewood Hospital with mosquito netting over their beds. View full size. Left half of a glass-plate stereograph.
This is almost like standing in that hospital ward looking at the soldiers. When seen in 3-D through a stereo viewer, the effect must be even more stunning.
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