Medium: Glass plate collodion negative
Dimensions: Image: 9 × 6 cm (3 9/16 × 2 3/8") ; Plate: 9.2 × 12.4 × 0.2 cm (3 5/8 × 4 7/8 × 1/16")
Object number: NPG.81.M1306.1
Credit Line: National Portrait Gallery, Smithsonian Institution; Frederick Hill Meserve Collection
Sitter: Samuel Clarke Pomeroy, 3 Jan 1816 - 27 Aug 1891
Place: United States\District of Columbia\Washington
Data Source: National Portrait Gallery