Pair of miniature folding opera glass binoculars

Pair of miniature?Galilean? type folding field glass binoculars

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Pair of miniature?Galilean? type folding field glass binoculars
Science Museum Group
© The Board of Trustees of the Science Museum

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