| Unidentified photographer Henry Rocher 1875 (ca) Collotype-like process 15 x 9.8 cm (5 7/8 x 3 7/8 in.) (image) 22.4 x 13.9 cm (8 13/16 x 5 1/2 in.) (mount) National Portrait Gallery, Smithsonian Institution National Portrait Gallery, Smithsonian Institution; gift of Larry J. West, Object number: S/NPG.2007.101 LL/115503
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