| Thomas George Mackinlay Study for a Picture 1856, June Albumen print 16 × 19.4 cm (6 5/16 × 7 5/8 ins) George Eastman Museum Purchase, 1979.1992.0025 LL/75468 From the album --The Photographic Album for the Year 1857--, London: Photographic Exchange Club, 1857, pl. 25.//
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