Trident Water Meter

This is a disc meter with frost proof bottom and serial number 3,908,357 that fit a ⅝” pipe, and that was made by the Neptune Meter Company in Long Island City, New York, around 1929. The Trident was based on designs patented by John Thomson, a prolific inventor and member of the American Society of Civil Engineers.
Ref: Neptune Meter Company, The Trident Water Meter (New York, 1895, 1901, 1903).
Object Name
water meter
date made
ca 1929
Neptune Meter Company
Physical Description
brass (overall material)
overall: 8 5/8 in x 7 1/2 in; 21.9075 cm x 19.05 cm
place made
United States: New York, Queens, Long Island City
ID Number
accession number
catalog number
Water Meters
Measuring & Mapping
Natural Resources
See more items in
Medicine and Science: Physical Sciences
Water Meters
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
A.A. Hirsch

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