Postcards Relating to the Hebern Electric Cipher Machine and the H. & H. Patent Developing Company
name: label: maker
content: Edward Hebern
notes: label: Description
content: One of these postcards shows the cipher machine in a patent submitted by Edward Hebern in Denmark in 1921. The second shows the outside of a patent development company.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
label: Subject
content: Codes and Ciphers
setName: label: See more items in
content: Medicine and Science: Mathematics
creditLine: label: Credit Line
content: Gift of T. Scripps Downing
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.3033.126
label: nonaccession number
content: 1991.3033
label: catalog number
content: 1991.3033.126
objectType: label: Object Name
content: postcards
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 15.5 cm x 10.5 cm; 6 3/32 in x 4 1/8 in