Richard's patent steam engine indicator in wooden box
Ground position indicator, Mk 4.
Crosby steam engine indicator, in box
1879-1896
Watt's steam engine indicator
McInnes-Dobbie steam engine indicator
1888 (design date)
Tabor steam engine indicator, in case with key
Foster Cambridge Temperature Indicator
1970-1979
Richards Steam Engine Indicator
Kenyon's pistonless steam engine indicator, 1878
1878-1890
Aircraft instrument: air apeed indicator by E. Hollocombe Clift
1914
Jet pipe temperature indicator (Smith's)
McNaught type steam engine indicator by J. Hannan
Simplex patent steam engine indicator
Hopkinson steam engine indicator
Richards Improved Patent Steam Indicator
Magnetic field indicator in chrome-plated metal case
1950-1970
Smith Air Speed Indicator Mark IVA
High voltage indicator
Indicator, type 48A
"Universal" Pivotless Moving Coil Indicator No.1888736
1966
German DVG indicator value of World War II
Eye-ball indicator
1920
illuminated moving scale indicator with transformer and operating switch
Crompton thermal maximum demand indicator
Electric line overload indicator
Honeywell `Electronik 15' Temperature Indicator
1971
Control Surface Position Indicator
Fuel Quantity Indicator
Nozzle Area Indicator
Indicator, two button
"Simplex" external spring steam engine indicator, Type B. In case.
Steam engine indicator with concentric drum
McNaughts' steam engine indicator 0.5 sq. ins.
Ferranti type 1 high voltage indicator
1935-1950
Locked/Free Indicator
Indicator Speed (German)
Revolution indicator (Smith's)
Indicator flap (Smiths) Ser.no.79106
Air-driven indicator - experimental
Whipple patent temperature indicator
1900-1982
Maihak engine indicator No.7077
Whipple Temperature Indicator serial no. C620290
1957
McCallam's patent distance indicator, 1864
1864
Oxygen economiser flow indicator.
Desynn indicator
Roller blind altitude indicator
Experimental remote indicator meter
Air position indicator, Mk 1B.
Darke's high speed steam engine indicator no.421
1879-1888