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 ...

This water meter combines a disc meter and a current meter. Ref: Gamon Meter Company ad in American City (1927). overall: 17 in x 10 in x 24 in; 43.18 cm x 25.4 cm x 60.96 cm ...