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WAshers Associated with Edward Hebern

WAshers Associated with Edward Hebern

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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.
One of these six washers is made of steel and the others are bakelite.
Location
Currently not on view
Object Name
washers
maker
Edward Hebern
Measurements
overall: 1.7 cm x 1.6 cm x 1.6 cm; 21/32 in x 5/8 in x 5/8 in
ID Number
1991.3033.113
nonaccession number
1991.3033
catalog number
1991.3033.113
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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