Beam-splitter glass prisms from artillery range-finder
- maker:
- Barr and Stroud Limited
Beam-splitter glass prisms in steel mount from artillery range-finder with 5-foot baseline, by Barr & Stroud, Glaasgow, Scotland, 1912-1950.
Details
- Category:
- Optics
- Object Number:
- 1955-338
- Materials:
- stainless steel, brass (copper, zinc alloy) and glass
- Measurements:
-
overall: 47 mm x 64 mm x 75 mm, Wt. 0.375kg
- type:
- porro–abbe prism and component - object
- credit:
- Banfield, Arthur Clive