Movement and clock face from the Abney's apparatus for recording the intensity of light
Movement and clock face from the Abney's apparatus for recording the intensity of light
- Object Number:
- 1909-162/3
- type:
- clock
Components, movement and clock, and a drive weight from Abney’s apparatus for recording the intensity of light
Movement and clock face from the Abney's apparatus for recording the intensity of light
Lead drive weight from Abney's apparatus for recording the intensity of light, unsigned