John B. Trevor [Andrey Avinoff's butterfly collection] Date ca. 1915 Dimensions Overall: 6 7/8 x 8 7/8 x 1/8 in. (17.5 x 22.5 x 0.3 cm) Print medium Photo-Autochrome Credit Line Gift of John B. Trevor Jr., 1976 Accession No. 897.1976
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