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Electro-mechanical tachometer by Smiths

Dr T.H.Horns' patent tachometer

Smith impulse tachometer

Component for the tachometer

1891

Tachometer for electronic Chernikeeff log, England, 1953-1963

1953-1963

Hand held tachometer

Schäffer & Budenberg tachometer

tachometer

1950-59

tachometer

1950-59

tachometer

1900-1913

Sir W H Bailey & Co. Ltd patent engine revolution indicator

circa 1900
6" Tachometer with cross-pendulum movement, reading from 600 to 2400 revs. per minute, with glass dial showing interior; with stand and 4" diam. pulley, no.22065. One woodcut of same, framed 8" x 6"

6" Tachometer with cross-pendulum movement

1877-1921
8" Horizontal Pattern Tachometer with loose web belt for pulley

8" Horizontal Pattern Tachometer

Engine test bed tachometer in box, with instructions for use, by Moul & Co. Ltd., Westminster, London, SW1, England.

Engine test bed tachometer in box

Rev. counter for the Bluebird record-breaking car

Bluebird rev. counter

1962