| Eadweard Muybridge Tisayac. Valley of the Yosemite. (Guardian Spirit.) "Half Dome." 4,750 Feet High. 1872 Albumen silver print 43 × 54.7 cm (16 15/16 × 21 9/16 ins) (image) 62.2 × 75.1 cm (24 1/2 × 29 9/16 ins) (mount) George Eastman Museum Gift of Harvard University, 1981.2377.0005 LL/69960
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