Cipher Machine Components Associated with Edward Hebern - Rotors


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.

The four rotors are numbered on the rim "5"; "4"; "3" and "4". A steel disc is sandwiched between each plastic ring. Twenty-six cloth-covered wires pass through holes in the metal disc of each rotor and attach on each side. Three of rotors have lettered lugs at both ends of the wires.

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: 1991.3033.002Catalog Number: 1991.3033.002Nonaccession Number: 1991.3033

Object Name: rotors

Physical Description: metal (overall material)plastic (overall material)cloth (overall material)Measurements: overall: 2 cm x 10.5 cm x 10.5 cm; 25/32 in x 4 1/8 in x 4 1/8 in


Record Id: nmah_692606

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