Calmet Model A-B Water Meter

This oscillating piston water meter with frost-proof bottom and serial number 958,732 fit a ⅝” pipe. It was made by the Well Machinery & Supply Company, of Fort Worth, Texas. The city of Fort Worth agreed, in 1930, to purchase 8,000 oscillating piston meters from the California Meter Company of Los Angeles. The Well Machinery & Supply Company acquired California Meter soon thereafter, and advertised Calmet water meters as “A Texas Made Product.”
Ref: “Water Meter Concern Cites Accepted Bid,” Los Angeles Times (Aug. 30, 1930), p. E1.
Well Machinery & Supply Company, Calmet. The Precision Built Water Meter (Fort Worth, n.d.).
Currently not on view
date made
ca 1930-ca 1950
Well Machinery & Supply Company
place made
United States: Texas, Fort Worth
Physical Description
bronze (overall material)
cast iron (overall material)
overall: 7 1/4 in x 7 1/2 in; 18.415 cm x 19.05 cm
ID Number
accession number
catalog number
Credit Line
A.A. Hirsch
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Medicine and Science: Physical Sciences
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Water Meters
Natural Resources
Data Source
National Museum of American History