- Subject
- Mathematical instruments
- Item type
- Object
- Makers
- George Adams
- Provenance
- Designed by Joshua Kirby. Made for Queen Charlotte (1744-1818).
- Primary inscriptions
- Engraved "Joshua Kirby Invt. Octr. 5. 1765" and "C [crown] R" on reverse.
- Physical material
- Silver
- Object type
- Protractor
- Dimensions
- Width: 125mm
- Inventory No
- 23312
- Accession Number
- 1951-58
Description
Semicircular protractor with scale of polygons (III-XII) and index arm on an extended rule base with a scale of 50 equal parts. In shagreen-covered case.
See Geometry of War catalogue http://www.mhs.ox.ac.uk/geometry/cat73.htm
Related Items
More related items
Circular Protractor, by George Adams, London, Mid-18th CenturyInventory Number 77049
Pricker Wheel Pen, Attributed to George Adams, English, 18th CenturyInventory Number 51022
Drawing Pen, Attributed to George Adams, English, 18th CenturyInventory Number 31268
Circular Protractor with Index Arm, by Adams, London, c. 1800Inventory Number 45109