Cipher Machine Component Associated with Edward Hebern - Rotor Component

Cipher Machine Component Associated with Edward Hebern - Rotor Component

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Description
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.
In this piece, two attached steel discs with geared edges and a circle of holes are attached to a black bakelite ring with no wiring. The rotor is Incomplete.
Location
Currently not on view
Object Name
rotor component
maker
Edward Hebern
Physical Description
steel (overall material)
plastic (overall material)
Measurements
overall: 1.6 cm x 10.3 cm x 10.3 cm; 5/8 in x 4 1/16 in x 4 1/16 in
ID Number
1991.3033.006
catalog number
1991.3033.006
nonaccession number
1991.3033
Credit Line
Gift of T. Scripps Downing
subject
Mathematics
Codes and Ciphers
See more items in
Medicine and Science: Mathematics
Data Source
National Museum of American History
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