Omega Series Blundell 405 (10-inch) slide rule with cardboard case
Details
- Category:
- Mathematics
- Object Number:
- 1998-421
- Measurements:
-
overall: 9 x 300 x 43 mm
- type:
- slide rule
- credit:
- Mr J.C. Michie
Omega Series Blundell 405 (10-inch) slide rule with cardboard case