si-african-american-history: Tintype of man in suit, tie, and hat, after 1860s, Smithsonian: Nationa
si-african-american-history: Tintype of man in suit, tie, and hat, after 1860s, Smithsonian: National Museum of African American History and CultureSize: H x W (Image and Sheet): 3 ½ × 2 ½ in. (8.9 × 6.4 cm)Medium: collodion and silver on iron with lacquerhttps://nmaahc.si.edu/object/nmaahc_2014.312.136 -- source link