Excise officer's slide rule

Made:
1759-1769 in City of London
maker:
Edward Roberts

Excise officer's slide rule, boxwood, 12" long, with four slides, inscribed "Edwd Roberts maker in Dove Court in Old Jewry London", in leather case

Details

Category:
Mathematics
Object Number:
1915-398
Measurements:
Closed: 25 mm x 305 mm x 22 mm, 0.16 kg
Extended: 25 mm x 575 mm x 22 mm, 0.16 kg
type:
slide rule (excise)
credit:
Thomas H. Court