| Heinrich Kühn On the Dunes [Camera Work, no. 33, pl. 10] 1900 (taken) 1911 (photogravure) Mezzotint photogravure 4 1/2 × 6 3/16 ins (11.5 × 15.7 cm) (image and sheet) Philadelphia Museum of Art From the Collection of Dorothy Norman, 1973, Accession Number: 1973-267-230 LL/71932
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