Cold Harbor, Va.
Photographer's wagon and tent
Between 1860 and 1865
During the Civil War, the process of taking photographs was complex and time-consuming. Two photographers would arrive at a location. One would mix chemicals and pour them on a clean glass plate. After the chemicals were given time to evaporate, the glass plate would be sensitized by being immersed -- in darkness -- in a bath solution. Placed in a holder, the plate would then be inserted in the camera, which had been positioned and focused by the other photographer. Exposure of the plate and development of the photograph had to be completed within minutes; then the exposed plate was rushed to the darkroom wagon for developing. Each fragile glass plate had to be treated with great care after development -- a difficult task on a battlefield.
