R. Morrison, photographic lens #691A, w/ manual aperture changer. Brass barrel contains 2 glass lenses, perature ring and screw mount on base. Patent date of May 21 1872 is engraved on the side.
Donor:
Department of Anthropology (UC Berkeley)
Collection place:
Berkeley, Alameda County, California
Verbatim coll. place:
Phoebe A. Hearst Museum of Anthropology
Culture or time period:
United States Historic
Materials:
Brass (alloy) and Glass (material)
Object type:
ethnography
Object class:
Photographic lenses (camera components) and Photographic lenses (object genre)
Function:
1.0 Use not specified (Utensils, Implements, and Conveyances)