Photoraph courtesy of Letts Collectors' guides Victorian
and Edwardian Photographs by Margaret F Harker ISBN 0 85097 369 4
Example of the construction of a typical Ambrotype. The wet collodion
negative is mounted with a black background then a vignette mask and then
glass. All mounted in a tooled leather holder. The same method of mounting
and construction was used to mount Daguerreotypes.