Antique Ambrotype Photographs
Until the ambrotype came along in 1851, when an Englishman named Frederick Scott Archer developed an inexpensive technique to expose photographic images on thin sheets of glass, the daguerreotype was the only type of photograph available. Made of copper plates faced with silver, daguerreotypes were expensive and fragile, which is why they were housed in sealed cases to keep their polished surfaces from tarnishing due to contact with fresh...Continue Reading