Pair of prismatic field glass binoculars

Pair of prismatic ‘Porro’ type patent field glass binoculars, (8 power & 20mm objective lenses), Serial No. 2483, by Ross Limited, London, England, 1910-1920.

Details

Category:
Optics
Object Number:
1979-856
Materials:
brass (copper, zinc alloy), zinc alloy, bakelite, leather and glass
Measurements:
overall: 50 mm x 105 mm x 95 mm, Wt. 0.431kg
type:
field glasses and binoculars
credit:
Frank, Arthur