Opera Glasses

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The objective lenses are about 29 mm diameter. The frame is black metal, as are the eyecups and the center wheel that adjusts the focus. The barrels are covered with a 3-dimensional leaf pattern. The words “PAT’D. OCT. 19 1886” onto each barrel refers to U.S. Patent 351125 describing a “Process of manufacturing colored relief impressions on sheet metal” issued to Friedman Priester and Otto Weidemann, both of Berlin.
Currently not on view
date made
late 19th century
overall: 2 1/2 in; 6.35 cm
overall in pouch: 6 in x 4 1/4 in x 1 3/4 in; 15.24 cm x 10.795 cm x 4.445 cm
ID Number
catalog number
accession number
Credit Line
Jane and Mary Henle
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Medicine and Science: Physical Sciences
Science & Mathematics
Data Source
National Museum of American History