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Extra short focus monocular telescope
OPERA GLASSES AND SPYGLASSES
monocular
Asia: Japan
Late 20th c.
metal; glass
overall (extended): 31 mm x 60 mm
2013.583
OPERA GLASSES AND SPYGLASSES
monocular
Asia: Japan
Late 20th c.
metal; glass
overall (extended): 31 mm x 60 mm
Monocular telescope. Black metal barrel with multi-faceted screw-focusing eyepiece wheel. Eyepiece can be screwed into another device. Separate plastic objective lens cap.
2013.583
The Norman Bier Collection, transfer from City University, 2013