Telegraph Key

Description (Brief)
Telegraph keys are electrical on-off switches used to send messages in Morse code. The construction of this German key is heavier than most American models used in land-line telegraphy. The telegraph system in Germany was operated by the Deutschen Reichpost (German Post Office) for whom Siemens & Halske made this key.
Currently not on view
Object Name
telegraph key
date made
ca 1890
Siemens & Halske
Physical Description
wood (overall material)
brass (overall material)
overall: 4 1/2 in x 3 1/2 in x 6 1/2 in; 11.43 cm x 8.89 cm x 16.51 cm
ID Number
catalog number
accession number
See more items in
Work and Industry: Electricity
Telegraph Keys
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
from the Museum of Science and Industry (Chicago)
Additional Media

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