Opera Glasses

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Description
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.
Location
Currently not on view
date made
late 19th century
Measurements
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
PH.336794
catalog number
336794
accession number
1978.2216
Credit Line
Jane and Mary Henle
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Optics
Data Source
National Museum of American History, Kenneth E. Behring Center

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