Union picket line in front of the rebel Fort Mahone, called by the soldiers "Fort Damnation", Richmond VA.

During the Civil War, photographers produced thousands of stereoviews. Stereographs were popular during American Civil War. A single glass plate negative capture both images using a Stereo camera. Prints from these negatives were intended to be looked at with a special viewer called a stereoscope, which created a three-dimensional ("3-D") image. This collection includes glass stereograph negatives, as well as stereograph card prints.