12th May, 2022 12:00
Fine Scientific and Medical Instruments
Medical, A Clinical Polygraph by Hawksley & Sons
English, c.1910, a complex development of the sphygmograph, in nickel plated brass, gilt brass and other materials, clockwork mechanism designed to measure and record heart rate and respiration rate, in fitted leather covered velvet lined case, case 26.2cm across
Sold for £500
Result plus buyers premium
English, c.1910, a complex development of the sphygmograph, in nickel plated brass, gilt brass and other materials, clockwork mechanism designed to measure and record heart rate and respiration rate, in fitted leather covered velvet lined case, case 26.2cm across
Auction: Fine Scientific and Medical Instruments, 12th May, 2022
