12th May, 2022 12:00
Fine Scientific and Medical Instruments
A Rare American Kimber Cleaver-Type Protractor
American, c.1850, unsigned but built to Kimber Cleaver's design, constructed of heavy guage brass, 'X' shaped frame supporting the circle of the protractor with spring steel pins with brass adjusters, engraved silver scale to the edge with single verner scale to the body, in fitted oak case, case width 16.5cm
Footnote: this pattern of protractor was designed by Kimber Cleaver (1814 - 1858) who worked as a mining engineer in the coal reagons of Pennsylvania.
Sold for £250
Result plus buyers premium
American, c.1850, unsigned but built to Kimber Cleaver's design, constructed of heavy guage brass, 'X' shaped frame supporting the circle of the protractor with spring steel pins with brass adjusters, engraved silver scale to the edge with single verner scale to the body, in fitted oak case, case width 16.5cm
Footnote: this pattern of protractor was designed by Kimber Cleaver (1814 - 1858) who worked as a mining engineer in the coal reagons of Pennsylvania.
Auction: Fine Scientific and Medical Instruments, 12th May, 2022
