Pair of plastic opera glass binoculars
- maker:
- A. Kershaw and Sons Limited
Pair of ‘Galilean’ type opera glass binoculars (3-4 power & 23mm objective lenses), ‘TIVOLI’ model, patent No. 410292 with plastic body and chrome plated brass parts, by A. Kershaw and Sons Ltd., 1930-1960.
Details
- Category:
- Optics
- Object Number:
- 1979-848
- Materials:
- plastic (unidentified), brass (copper, zinc alloy), chromium plated and glass
- Measurements:
-
overall: 35 mm x 105 mm x 50 mm, Wt. 0.142kg
- type:
- opera glasses and binoculars
- credit:
- Frank, Arthur