Pilot Balloon slide rule Mk IV, Met Ref 868, by James Farrwow & Son, London, in case. 1952
Details
- Category:
- Meteorology
- Object Number:
- 1995-1890
- Measurements:
-
box: 4.8 x 65.7 x 8.7 cm
- type:
- slide rule
- credit:
- Meteorological Office