| Gardner & Gibson A Contrast! Federal Buried, Rebel Unburied, Antietam 1862 Albumen print 3 1/4 x 4 1/4 ins (8.26 x 10.8 cm) (overall) Nelson-Atkins Museum of Art Gift of Hallmark Cards, Inc., Object number: 2005.27.3785 LL/80914 Alexander Gardner and James F. Gibson
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