Azimuth circle prism testing thread
Azimuth circle prism testing thread with two weights.
Object Details
ID: | ACO1114.4 |
---|---|
Type: | Azimuth circle prism testing thread |
Display location: | Not on display |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | One weight: Diameter: 4 mm;Overall: 44 mm |
Parts: |
Azimuth Circle
|