| Edward Steichen Mary Learns to Walk [Camera Work, no. 42/43, pl. 04] 1913 (photogravure) Photogravure 8 1/4 × 6 3/8 ins (20.9 × 16.2 cm) (image) 11 1/8 x 7 7/8 ins (28.3 x 20 cm) (sheet) Philadelphia Museum of Art Gift of Carl Zigrosser, 1966, Accession Number: 1966-205-42/43(4) LL/72206
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