Circular slide rule for calculation in simple interest
- Made:
- France
Circular slide rule for calculation in simple interest, 4 3/4 inch diameter, in card, with celluloid cursor in metal mount, with pamphlet "Instruction pour l'emploi du Nouveau cercle a calculs"
Details
- Category:
- Mathematics
- Object Number:
- 1927-408
- type:
- circular slide rule
- credit:
- Mr L. Malassis