Thomas Hicks, c. 1860-1870, Smithsonian: National Portrait GallerySize: Plate: 8.9 × 5.9 &time
Thomas Hicks, c. 1860-1870, Smithsonian: National Portrait GallerySize: Plate: 8.9 × 5.9 × 0.2 cm (3 ½ × 2 5/16 × 1/16")Medium: Glass plate collodion negativehttps://npg.si.edu/object/npg_NPG.81.M884 -- source link
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