Ambrotype in a case, of a woman and man, probably a wedding day portraitPalmquist, Peter E. (1936-2003)circa 1855engHalf-plate ambrotypeFull leather case, geometric design; imprint on velvet pad of case: "R.H. VANCE'S/ PREMIUM DAGUERREAN & PATENT / AMBROTYPE GALLERY / SAN FRANCISCO & SACRAMENTO"May represent the earliest known photographic image of a full bridal costume in the American Pacific West