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Prototype Hebern Cipher Machine

Prototype Hebern Cipher Machine

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Description
This is a prototype rotary cipher machine component made by the American inventor Edward Hebern. The badly rusted machine has a steel frame with a keyboard in front, a motor on top, and a cylindrical device on its side on the top. Numerous wires lead into the cylinder, and it is attached by a gear shaft to the motor. There is a capacitor in back. There is a cord on the right and another on the left. Dimensions do not include cords. The keyboard has three rows of keys, arranged like a QWERTY keyboard, with no top row. The second row has a "SHIFT (/) LOCK" key and the bottom row a black "SHIFT (/) KEY". The object resembles the keyboard part of 1991.0190.06, but the keys are white on this machine.
Location
Currently not on view
Object Name
cipher machine
maker
Hebern, Edward
Edward Hebern
Physical Description
metal (overall material)
rubber (overall material)
Measurements
overall: 14 cm x 31 cm x 42 cm; 5 1/2 in x 12 7/32 in x 16 17/32 in
ID Number
1991.0190.05
accession number
1991.0190
catalog number
1991.0190.05
Credit Line
Gift of T. Scripps Downing
subject
Mathematics
Codes and Ciphers
See more items in
Medicine and Science: Mathematics
Military
Data Source
National Museum of American History
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