- Subject
- Calculation
- Item type
- Object
- Makers
- Clerget
- Primary inscriptions
- "Clerget / A paris"
- Physical material
- Silver
- Object type
- Sector
- Dimensions
- Height: 2mm Width: 88mm Depth: 88mm Weight: 0.023kg
- Inventory No
- 43341
Description
With scales for "Les Cordes", "Metaux", "Les parties Egales", "poligones", "poids des boulets", and "Calibre des piece [sic]".
When opened at right-angles, a plumb-line and bob may be suspended from the apex of the triangle so formed. On the cross-piece, which keeps in position the arms of the sector, are engraved a central dotted line and arrow for use in levelling the plumb-line.
