| Calvert Richard Jones Unidentified Cast Iron Bridge 1845 (taken, later print) Gelatin silver print,from original paper negative 4 1/4 × 8 1/8 ins (10.8 × 20.7 cm) (image) 4 3/4 × 8 11/16 ins (12 × 22 cm) (sheet) Philadelphia Museum of Art Purchased with funds contributed by Dorothy Norman, 1971, Accession Number: 1971-114-29 LL/71876
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