1. Ambrotype of an unidentified woman Creator: Mason, John T., b. 1822. Published / Created: n.d. Call Number: WA MSS S-2173 Collection Title: John T. Mason diaries Container / Volume: Box 2 | Folder 14 Image Count: 4 Resource Type: Prints & Photographs Found in: Beinecke Rare Book and Manuscript Library > Ambrotype of an unidentified woman