Barnard's Co-ordinate spiral slide rule
Barnard's Co-ordinate spiral slide rule, Serial No. 27/09, in box, with instruction leaflet, dated 1909, Great Turnstile, London
Details
- Category:
- Mathematics
- Object Number:
- 1977-480
- Measurements:
-
length 275 mm
width 105 mm
height 95 mm
- type:
- spiral slide rule
- credit:
- College of Further Education (Kendal)