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hard rubber watchcase receiver
hard rubber watchcase receiver

hard rubber watchcase receiver

Datelate 19th Century
Inventory Number8071
ClassificationTelephone
Subject
    Maker American ?
    Cultural Region
      Dimensions8.5 × 8.5 × 4.7 cm (3 3/8 × 3 3/8 × 1 7/8 in.)
      Material
        DescriptionA telephone receiver known as a "watchcase" style receiver, because of its compact shape. The device consists of a short cylindrical case, made of hard rubber with knurled edge markings, topped by a flat disk with a flute-shaped earpiece centered on it.

        The earpiece has a circular opening at the base, and a diaphragm may be seen through the opening.

        The opposite end of the cylinder has two brass terminals and two screw heads mounted flush to the case. Both terminals and screws have slot-headed tops.

        There are no manufacturer markings on the case.
        Signedunsigned
        Curatorial RemarksOld tag: "SPCR 8071"
        FunctionConversion of electrical impulses into sound for output by telephone
        ProvenanceJefferson Laboratory, Physics Department, Harvard University
        hard rubber steel-brass receiver
        hard rubber steel-brass receiver
        American
        Date: late 19th Century
        Object number: 8072
        hard rubber/steel receiver
        hard rubber/steel receiver
        American
        Date: late 19th Century
        Object number: 8075
        hard rubber steel-brass receiver
        hard rubber steel-brass receiver
        American
        Date: late 19th Century
        Object number: 8073
        AT&T receiver
        AT&T receiver
        Western Electric Company
        Date: circa 1900
        Object number: 8077a
        AT&T receiver
        AT&T receiver
        Western Electric Company
        Date: 1895-1899
        Object number: 8077b
        British watchcase receiver
        British watchcase receiver
        Telephone Company Ltd.
        Date: circa 1879
        Object number: 8070
        Köhler watchcase receiver
        Köhler watchcase receiver
        Fritz Köhler
        Date: circa 1892
        Accessories: Ivory signaling rattle
        Object number: 8098a
        Köhler watchcase receiver
        Köhler watchcase receiver
        Fritz Köhler
        Date: circa 1892
        Accessories: ivory signaling rattle
        Object number: 8098b
        Köhler watchcase receiver
        Köhler watchcase receiver
        Fritz Köhler
        Date: circa 1892
        Accessories: Ivory signaling rattle
        Object number: 8098c
        Bell Hunnings-Cone house telephone receiver
        Bell Hunnings-Cone house telephone receiver
        Henry Hunnings
        Date: circa 1892
        Object number: 8089b
        solid receiver
        solid receiver
        William J. Murdock Company
        Date: circa 1900
        Object number: 8076
        Hartmann & Braun receiver
        Hartmann & Braun receiver
        Hartmann & Braun AG
        Date: 1901-1933
        Object number: 8074