| Clarence H. White Alvin Langdon Coburn and His Mother [Camera Work, no. 33, pl. 01] 1909 (taken) 1910 (photogravure) Photogravure 8 5/16 × 6 1/4 ins (21.1 × 15.8 cm) (image) 11 7/16 × 8 1/16 ins (29 × 20.5 cm) (sheet) Philadelphia Museum of Art Gift of Carl Zigrosser, 1966, Accession Number: 1966-205-32(9) LL/72502
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