Clockwork motor and shutter assembly from Dobson Spectrophotometer
Clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office.
- Measurements:
-
overall: 210 mm x 253 mm x 382 mm,
- Materials:
- metal (unknown) and plastic (unidentified)
- Object Number:
- 1992-693/2
- type:
- instrument component and spectrophotometer