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LicenseTriangular glass erecting prism (refracting angle 90?)
Science Museum Group
© The Board of Trustees of the Science Museum
Triangular glass erecting prism (refracting angle 90º), in brass and steel mount, from 'No.7' dial-sight (artillary?), unsigned, European, 1910-1950.
Details
- Category:
- Optics
- Object Number:
- 1955-318
- Materials:
- glass, brass (copper, zinc alloy), steel (metal) and horsehair
- Measurements:
-
overall: 35 mm x 50 mm x 40 mm, Wt. 0 .116kg
- type:
- erecting prism and component - object
- credit:
- Banfield, Arthur Clive
