| Gustave Le Gray Officers Seated at a Tent, Camp de Châlons [Album "Souvenirs du Camp de Châlons"] 1857 Albumen print 31.4 × 36.5 cm (image/paper); 43.5 × 52 cm (mount) Art Institute of Chicago Purchased with funds provided by Edwin A. Bergman, and William Mares in honor of Hugh Edwards, Reference Number: 1978.1230 LL/112773
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