1 photograph : albumen print on ambrotype plate; sixth plate, visible image 6.4 x 5.1 cm.
The Bancroft Library
Albumen print adhered to an ambrotype plate. This backing plate bears a portrait of an unidentified bearded man, visible when transilluminated. Ambrotype is probably of a slightly earlier date. <physfacet label="Image Package Note">Original component parts: albumen print, backing plate, mat, cover glass, preserver. Plate: albumen print on paper mounted to ruby glass ambrotype. Mat: decorative oval; Patriotic Union motif with ship, cannon, flags, bayonettes and liberty caps. Preserver: decorative.</physfacet>;;;<physfacet label="Container or Case Note">Type: case. Motif: floral - scroll and leaf motif. Material: paper over wood? Dimensions: 9.3 x 8 cm. Pad: red velvet with embossed motif. Notes: spine label - 698 (from prior owner).</physfacet>;;;<physfacet label="Marks, Inscriptions and Accompanying Material">On mat (LC): July 4th 1776 (L): Constitution; (R): and Union. (On mat edge): Scovill Mfg. Co Superior / Watertown Conn. No. 824.</physfacet>;;;
Image 2: Before treatment: albumen print in ambrotype case.
Image 3: (During treatment: bare plate with albumen print in raking light. Scanned from a 35mm slide.)
Image 4: (During treatment: transilluminated, showing both images. Scanned from a 35mm slide.)
Image 5: (During treatment: transilluminated (variant exposure), showing both images. Scanned from a 35mm slide.)
Image 6: (During treatment: transilluminated, showing both images. Scanned from a 35mm b&w negative.)
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