Douglas Reflecting Protractor, by Cary, London, Early 19th Century

Subject: Mathematical instruments
Item type: Object
Makers: Cary
Provenance: Patented by Sir Howard Douglas in 1811.
Primary inscriptions: "Cary London" and "Patent 24" (the latter presumably a serial number).
Physical material: Brass
Object type: Protractor
Inventory No: 44594

Description

Brass, with vernier and plotting scale in yards; in original mahogany box.