Cipher Machine Components Associated with Edward Hebern - Rotor Component


The American inventor Edward Hebern (1869-1952) designed a series of machines for encrypting messages. The Smithsonian collections include a few of these as part of accession 1991.0190. Like many inventors, Hebern accumulated a variety of spare parts. These are some of them, part of museum transaction 1991.3033.

These two black bakelite pieces are like those found holding the rotors in 1991.190.02 and like those on the shaft in 1991.3033.01. Each piece has the dimensions given. One piece has metal connections but irregularly spaced holes at the center. The other has no wiring. One rotor is marked: EXTRA.

Maker: Edward Hebern

Location: Currently not on view

Subject: MathematicsCodes and Ciphers


See more items in: Medicine and Science: Mathematics


Exhibition Location:

Credit Line: Gift of T. Scripps Downing

Data Source: National Museum of American History

Id Number: 1991.3033.005Catalog Number: 1991.3033.005Nonaccession Number: 1991.3033

Object Name: cipher machine components

Physical Description: plastic (overall material)Measurements: overall: 1.1 cm x 10 cm x 10.2 cm; 7/16 in x 3 15/16 in x 4 1/32 in


Record Id: nmah_692609

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