| Hans Watzek Sheep [Camera Work, no. 13, pl. 13] 1901 (taken) 1906 (photogravure) Photogravure 6 5/8 × 8 11/16 ins (16.8 × 22 cm) (image) 6 13/16 x 8 7/8 ins (17.3 x 22.5 cm) (sheet) Philadelphia Museum of Art From the Collection of Dorothy Norman, 1973, Accession Number: 1973-267-256 LL/72492
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