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silver painted cup receiver
silver painted cup receiver

silver painted cup receiver

Dateearly 20th Century
Inventory Number8078a
ClassificationTelephone
Subject
    Maker American ?
    Cultural Region
      Dimensions6.1 × 8.4 × 3.3 cm (2 3/8 × 3 5/16 × 1 5/16 in.)
      Material
        DescriptionA telephone receiver, consisting of a hemispherical silver-painted or nickel-plated instrument case topped by a hard-rubber earpiece. A slot-headed screw in the center of the back of the case attaches a curved, flat metal tab with a hanging hook. On one side, a pair of tubular terminals with slot-headed adjustment screws protrude from the back of the case

        The black molded earpiece is dish shaped with rounded edges, with a circular opening in the base of the dish through which part of a black diaphragm may be seen. The earpiece screws on to the silver case.

        Instruments 8078a and 8078b are similar.
        Signedunsigned
        Curatorial RemarksOld tag: "SPCR A 8078". Instruments 8078a and 8078b are similar.
        FunctionConversion of electrical impulses into sound for output by telephone
        ProvenanceJefferson Laboratory, Physics Department, Harvard University
        nickel-plated cup receiver
        nickel-plated cup receiver
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        Date: early 20th Century
        Object number: 8078b
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        Object number: 8070
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        Date: circa 1883
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        Object number: 8072
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        Object number: 8075
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        Object number: 8071
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        Date: circa 1900
        Object number: 8077a
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        William J. Murdock Company
        Date: circa 1900
        Object number: 8076