| Alvin Langdon Coburn A Portrait Study [Camera Work, no. 06, pl. 02] 1904 (photogravure) Photogravure 6 15/16 × 5 13/16 ins (17.6 × 14.7 cm) (image and sheet) Philadelphia Museum of Art Gift of Carl Zigrosser, 1966, Accession Number: 1966-205-6(2) LL/71426
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