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Ramsbottom speed indicator

1860

Speed Indicator or Tachometer

Hedges Patent Vortex Speed Indicator

Ground speed indicator (Kent-Hunt experiment)

Standard Hedges Patent Vortex Speed Indicator as used on locomotives

Teloc speed indicator and recorder No 3940 for locomotives, built by Hasler Telegraph Works, c.1930.

Teloc Speed Indicator

1930

Speed Indicator and Recorder, Hasler-Hausshalter type, by G. Hasler, Berne, Switzerland, as fitted to North British Locomotive Co engines built for France during the 1914-1918 war.

Hasler Speed Indicator and Recorder

1914-1918

Gooch's locomotive speed indicator, and sample of output trace.

gooch's speed indicator

Brown's speed indicator and recorder for railway trains 1863

Brown's speed indicator and recorder

1863

Electric speed indicating equipment No.782073

Electric speed indicating equipment No.782073

Vertical speed indicator by DBA Division, Air Equipment, Asnieres, Hauts-de-Seine. Part no. 003-033 for Concorde

Vertical Speed Indicator

Speed indicator, made by Elliott Brothers, Young's patent no 7178. Aluminium drum container with glass covered dial on top.

Speed indicator

Air Speed Indicator, Range: 60-750 Km/h, by Bruhn, 1920-1970. Anforderz FL. 22231

Air Speed Indicator, 1920-1970

1920-1970