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.
Vintage photos of:
Photo is titled "New Engine." Most likely at Charlestown Navy Yard late 1800's as the album it was scanned from contains mostly photos from there and Chelsea Navy Yard in that time period. Anyone have additional information? View full size.