| Heinrich Kühn Portrait [Camera Work, no. 33, pl. 07] 1911 (photogravure) Photogravure 6 15/16 × 5 9/16 ins (17.7 × 14.1 cm) (image) 10 1/4 × 7 7/8 ins (26 × 20 cm) (sheet) Philadelphia Museum of Art From the Collection of Dorothy Norman, 1973, Accession Number: 1973-267-227 LL/71935
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