Pair of miniature folding opera glass binoculars
Pair of miniature‘Galilean’ type folding field glass binoculars, patent ‘Winett’ model, (2-3 power & 20mm objective lenses), aluminium and brass with leather covering, by Emil Busch Optical Company Limited, London, England, 1910-1939.
Details
- Category:
- Optics
- Object Number:
- 1979-839
- Materials:
- brass (copper, zinc alloy), aluminium alloy, steel (metal), nickel plated, leather and glass
- Measurements:
-
overall (closed): 30 mm x 70 mm x 65 mm, Wt. 0.11kg
- type:
- field glasses and binoculars
- credit:
- Frank, Arthur