Small interference apparatus for showing colour bands, unsigned, European, 1850-1911. Consists of two flat reflection gratings, ruled on glass, in rotatable brass cylindrical mounts so that each surface is parallel.
Details
- Category:
- Optics
- Object Number:
- 1911-192
- Materials:
- brass (copper, zinc alloy) and glass
- Measurements:
-
overall: 18 mm 46 mm, .094kg
- type:
- interference apparatus
- credit:
- Court, Thomas Henry