Dr T.H.Horns' patent tachometer

Dr T.H

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Dr T.H
Science Museum Group
© The Board of Trustees of the Science Museum

Dr T.H.Horns' patent tachometer in fitted case with two gears and one driving point

Details

Category:
Motive Power
Object Number:
1980-652
type:
tachometer
credit:
Christie's South Kensington Limited