Thatcher Calculator, patented by Edwin Thatcher, November 1881, Keuffel & Esser, New York, model 4012, no. 2134, with inner cylinder and outer scales, on mahogany base, wd. 22 1/2 in., in a finger-jointed mahogany box.
Auctioneer:
Skinner
Date:
2012-12-01
Thatcher's Calculator by Keuffel & Esser, Model 4012, No. 5008, with inner rotating cylinder and outer scales, on mahogany base, wd. 21 in., in mahogany Read more…
Auctioneer:
Skinner
Date:
2004-09-11
Thatcher's Calculator by Keuffel & Esser, Model 4012, No. 4250, with inner cylinder and outer scales, on mahogany base with instruction label, wd. 21 1/2 Read more…
Auctioneer:
Skinner
Date:
2003-05-03
