12th May, 2022 12:00
Fine Scientific and Medical Instruments
Froude's Ship Displacement Slide Rule by Stanley
English, c.1900, in boxwood, single slide, double-sided with brass cursor, conversion formulae to edges, 61.5cm
Sold for £225
Result plus buyers premium
English, c.1900, in boxwood, single slide, double-sided with brass cursor, conversion formulae to edges, 61.5cm
Auction: Fine Scientific and Medical Instruments, 12th May, 2022
