Astronomisches Rechengerat, navigational slide rule for solving problems in spherical trigonometry
Details
- Category:
- Mathematics
- Object Number:
- 1946-241
- Materials:
- plastic, glass, brass, wood & steel and complete
- Measurements:
-
Estimate overall: 180 mm 180 mm,
- credit:
- British Admiralty (Tactical & Staff Duties Division)