| Antoine Claudet Self-portrait with His Son Henri and His Invention, the Focimeter 1851-1853 Daguerreotype, stereograph 3 1/4 × 6 7/8 × 1/8 ins (8.3 × 17.5 × 0.3 cm) (overall) Philadelphia Museum of Art Gift of Harvey S. Shipley Miller, 2014, Accession Number: 2014-199-52 LL/71062
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