Keystone Compound Water Meter
date: label: date made
content: late 1920s
notes: label: Description
content: This is a compound water meter that fit a 2” pipe. The Pittsburgh Meter Company introduced the Keystone meter in 1901, and the Pittsburgh Equitable Meter Company was still producing it in the late 1930s. The serial number (1,648,433) suggests that this example was made in the late 1920s. Pittsburgh Equitable explained that this model “consists of a combination of two units for measuring both the large and small flows of water, together with an automatic valve mechanism for controlling both flows so that the small flows will automatically pass through one unit and the large flows through the other unit at exactly the proper time and with as slight absorption or loss of pressure as possible.”
label: Description
content: Ref: Pittsburgh Equitable Meter Company, <i>Keystone Compound Water Meters. Eureka ‘A’ Water Meters</i>, Bulletin W-502 (1929).
label: Location
content: Currently not on view
place: label: place made
content: United States: Pennsylvania, Pittsburgh
topic: label: Subject
content: Water
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Natural Resources
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content: Water Meters
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content: Measuring & Mapping
creditLine: label: Credit Line
content: A. A. Hirsch
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.325857
label: accession number
content: 245003
label: catalog number
content: 325857
objectType: label: Object Name
content: water meter
physicalDescription: label: Physical Description
content: bronze (overall material)
label: Measurements
content: overall: 13 in x 14 in; 33.02 cm x 35.56 cm