Unidentified Woman, c. 1860-1870, Smithsonian: National Portrait GallerySize: Plate: 9 × 5.9 &
Unidentified Woman, c. 1860-1870, Smithsonian: National Portrait GallerySize: Plate: 9 × 5.9 × 0.2 cm (3 9/16 × 2 5/16 × 1/16")Medium: Glass plate collodion negativehttps://npg.si.edu/object/npg_NPG.81.M2558 -- source link
#nationalportraitgallery#museumarchive#openaccess