French sector by Canivet,
Brass French sector by Canivet, Paris, 1751-1774. French sectors are less complicated than English sectors. They are also used for calculations involving proportions of length, area and volume.The lines radiate from the centre of the hinge.
- Currently on display in:
- Mathematics
- Year made :
- 1751-1774
- Inventory number :
- 1917-94
