18th Oct, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
A Major General Hannyngton’s Extended Slide Rule
English c. 1890, large grid-iron model, in boxwood and nickel-silver in mahogany case, by Aston & Mander, 15 fixed scales and 8 sliding scales in mahogany case, signed 'Designed by Major General Hannyngton Aston & Mander Ltd Makers London', case 84cm.
Sold for £1,440
Result plus buyers premium
English c. 1890, large grid-iron model, in boxwood and nickel-silver in mahogany case, by Aston & Mander, 15 fixed scales and 8 sliding scales in mahogany case, signed 'Designed by Major General Hannyngton Aston & Mander Ltd Makers London', case 84cm.
Auction: Fine Photographica & Instruments of Science & Medicine, 18th Oct, 2019
