ANTIQUE c1860 1/6 PLATE TINTED AMBROTYPE, SEATED LADY, BLACK LEATHER CASE

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ANTIQUE c1860 1/6 PLATE TINTED AMBROTYPE, SEATED LADY, BLACK LEATHER CASE Description: A very clear early British Ambrotype image of a Lady seated on a chair next to an occasional table. Her face and dress have been hand tinted, and she is framed in a black leather gilt tooled case with very decorative gilt metal arched mount. The ambrotype is a photograph that createsa positive image on a sheet of glass using the wet plate collodion process. In the United Kingdom it was called collodion positive : one side of a very clean glass plate is covered with a thin layer of collodion , then dipped in a silver nitrate solution. The plate is exposed to the subject while still wet. The plate is then developed and fixed with another plate of glass put over the fragile emulsion side to protect it, and the whole is mounted in a metal frame and kept in a protective case. The ambrotype was much less expensive to produce than the daguerreotype, and it lacked the daguerreotype's shiny metallic surface, which some found unappealing. By the late 1850s, the ambrotype was overtaking the daguerreotype in popularity; by the mid-1860s, the ambrotype itself was supplanted by the tintype and other processes. Ambrotypes were often hand-tinted. Untinted ambrotypes are grayish-white and have less contrast and brilliance than daguerreotypes. Dimensions: read more