Telegraph Key

Description (Brief):

Telegraph keys are electrical on-off switches used to send messages in Morse code. The message travels as a series of electrical pulses through a wire. The operator pushes the key’s lever down briefly to make a short signal, a dot, or holds the lever down for a moment to make a slightly longer signal, a dash. The sequence of dots and dashes represent letters and numbers. This key is a very simple type known as a strap key.

Date Made: ca 1910

Location: Currently not on view

See more items in: Work and Industry: Electricity, Telegraph Keys, Communications


Exhibition Location:

Credit Line: from Western Union Corporation

Data Source: National Museum of American History

Id Number: EM.333359Maker Number: 3BAccession Number: 294351Catalog Number: 333359

Object Name: keytelegraph key

Physical Description: metal (overall material)plastic (overall material)Measurements: overall: 2 in x 4 in x 2 in; 5.08 cm x 10.16 cm x 5.08 cm


Record Id: nmah_892117

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