18th Oct, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
A Slide Rule by James Tree
English, c. 1835, in boxwood, entitled 'Scale for Weight of Malleable Iron plates and Bars' with scales for breadth in inches, thickness in 16ths of an inch, weight in pounds and hundredweights and length in feet, stamped 'J Treemaker London'.
Sold for £156
Result plus buyers premium
English, c. 1835, in boxwood, entitled 'Scale for Weight of Malleable Iron plates and Bars' with scales for breadth in inches, thickness in 16ths of an inch, weight in pounds and hundredweights and length in feet, stamped 'J Treemaker London'.
Auction: Fine Photographica & Instruments of Science & Medicine, 18th Oct, 2019
