Pair of prismatic ‘Porro’ type field glass binoculars, (8 power(?) & 22mm objective lenses), ‘TRIEDER’ model, D. R. Patent, by C. P Goerz, Berlin, 1910-1926.
Details
- Category:
- Optics
- Object Number:
- 1979-855
- Materials:
- brass (copper, zinc alloy), aluminium alloy, steel (metal), leather and glass
- Measurements:
-
overall: 55 mm x 125 mm x 120 mm, Wt. 0.591kg
- type:
- field glasses and binoculars
- credit:
- Frank, Arthur