'Half-penta' type glass erecting prism, from variable magnification telescope, unsigned, European, 1920-1950.
Details
- Category:
- Optics
- Object Number:
- 1955-315
- Measurements:
-
overall: 26 mm x 60 mm x 37 mm, Wt. 0.094kg
- type:
- prism - optical and component - object
- credit:
- Banfield, Arthur Clive