Set in Original Embossed Leather & Velvet Union Case
Circa 1850s-1860s
Measures 2 1/2" x 3 7/8"
Spine Has Been Repaired With Book Binding Tape
Daguerreotypes were a very early form of photography, a photographer would use a camera to expose light on a silver-plated plate of copper, then develop the image using a mercury vapor. Widely used in the 1840s and 1850s, it was soon replaced by the ambrotype. Because the silver takes on a mirror-like appearance, the subject can be viewed as either a positive or negative image depending on the angle viewed.