Eurometers model E6 ultrasonic gas meter
1994
E6S Ultrasonic Gas Meter
1996
Gas Meter
1882
Vulcan portable test gauge
1920-1950
Circular wet gas meter made by Thomas West and Company
Vulcan Meter Co. gas meter
1926
Gas meter, as used in air sampling
1960-1969
gas meter
gas meter
1871
Pre-payment device.
1920-1950
J Cochrane Gas meter
Gas meter from atmospheric pollution smoke filter and volumetric sulphur dioxide apparatus
1964
Gas meter used on 1953 Mount Everest expedition
1952-3
Gas meter
Pressure recorder
circa 1979
Demonstration Parkinson Cowan gas meter
1977
Gas meter
West & Gregson gas meter
1894
Holmes-Connersville positive displacement gas meter
1955
Sieger explosive gas meter from Howards Chemical Works
Telling and Johnson Dry gas meter
Gas meter
circa 1900