Ammeter

Bell Telephone Manufacturing Company, Manufacturer

Circa 1930s
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Details


Maker and Role
Bell Telephone Manufacturing Company, Manufacturer
Production Date
Circa 1930s
Description
This circa 1930s French made BTM battery charge-discharge ammeter, was probably used in a telephone exchange. Manufactured by B.T.M. No.23601. Large, circular, metal case. Glass reading window with balck metal needle. Measurement from 0-75 on both charge and discharge scale Face and base have wide flattened rims. THinner neck.
Media/Materials
Processed Material/Metal
Processed Material/Glass
Signature/Marks and Type
BMT / A Maker's Mark
Accession No
1966.371
Credit Line
Bell Telephone Manufacturing Company. Circa 1930s. Ammeter, 1966.371. The Museum of Transport and Technology (MOTAT).
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