| Edward S. Curtis Placating the Spirit of a Slain Eagle--Assiniboin 1928 Photogravure, on vellum 15 3/8 x 11 3/8 ins (39.1 x 28.9 cm) Swann Galleries - New York Courtesy of Swann Galleries (Auction, May 21, 2015, #2385, Lot 41) LL/59471 The North American Indian, Plate 634
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