Watt's steam engine indicator
1796-1890
Ground position indicator, Mk 4.
Richard's patent steam engine indicator in wooden box
Crosby steam engine indicator, in box
1879-1896
Tabor steam engine indicator, in case with key
Simplex patent steam engine indicator
Magnetic field indicator in chrome-plated metal case
1950-1970
Foster Cambridge Temperature Indicator
1970-1979
Aircraft instrument: air apeed indicator by E. Hollocombe Clift
1914
Smith Air Speed Indicator Mark IVA
Richards Steam Engine Indicator
Kenyon's pistonless steam engine indicator, 1878
1878-1890
McNaught type steam engine indicator by J. Hannan
Trico-Folberth semaphore type motor vehicle direction indicator
circa 1952
Short's gas indicator, made by E. F. Gurnett
Hopkinson steam engine indicator
Jet pipe temperature indicator (Smith's)
Richards Improved Patent Steam Indicator
Rudder angle indicator and junction box
1948-1951
Whipple patent temperature indicator
1900-1982
Honeywell `Electronik 15' Temperature Indicator
1971
Zero-Reader flight director indicator
Ferranti elevation range indicator
1965
Ferranti type 1 high voltage indicator
1935-1950
Steam engine indicator with concentric drum
Boxed set containing a bottle of BDH Universal indicator
1960-1980
Eye-ball indicator
1920
"Simplex" external spring steam engine indicator, Type B. In case.
Young's speed indicator, with open dial, 1881, on mahogany stand
1881-1888
illuminated moving scale indicator with transformer and operating switch
McCallam's patent distance indicator, 1864
1864
Whipple Temperature Indicator serial no. C620290
1957
Adam's play indicator in fitted case
Versaflo™ air flow indicator
2020-2021
Desynn indicator
Turn-and-slip indicator
Autosyn altitude indicator
Pair of Darke's patent steam engine indicators boxed separately and contained within a larger case
Air position indicator, Mk 1B.
4 temperature indicators from hot air balloon fatal accident at Birmingham
"Atkinson-Schattner" maximum demand indicator
Roller blind altitude indicator
German DVG indicator value of World War II
Cambridge deflection type temperature indicator
Indicator Torque (Smiths) Ser. no. 1060/1
Boxed set comprising of standardised glass disc and bottle of Bromo-Phenol-Blue indicator
1960-1980
Six point totally enclosed indicator
1900-1982
Control Surface Position Indicator
