| William Langenheim William Langenheim 1848-1850 (ca) Daguerreotype 8.9 x 7 cm (3 1/2 x 2 3/4 in.) (image) 1.4 x 11.6 x 9.2 cm (9/16 x 4 9/16 x 3 5/8 in.) (case) Metropolitan Museum of Art Gilman Collection, Gift of The Howard Gilman Foundation, 2005, Accession Number:2005.100.221 LL/92014
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