| Thomas Eakins Unidentified Model, Motion Study - Man Running and Jumping to the Left 1884 (negative, later print) Gelatin silver print 5 × 6 3/4 ins (12.7 × 17.2 cm) (image and sheet) Philadelphia Museum of Art Gift of Charles Bregler, 1977, Accession Number: 1977-171-13 LL/71055
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