35-plate echelon diffraction grating by Adam Hilger Ltd.
- maker:
- Adam Hilger Limited
35-plate echelon diffraction grating by Adam Hilger Ltd., London, c.1930
Details
- Category:
- Optics
- Object Number:
- 1986-246
- Materials:
- glass, metal, brass (copper, zinc alloy), steel, steel (chromium alloy) and aluminium alloy
- Measurements:
-
overall: 100 mm x 590 mm x 120 mm, , 6.39kg