NSA Cryptographic Museum
The NSA has a PDF of hobo signs in their National Cryptographic Musem
Page 1
Page 2
https://www.nsa.gov/about/cryptologic-heritage/museum/assets/files/hobo-signs-definitions.pdf
NSA Cryptographic Museum |
|
The NSA has a PDF of hobo signs in their National Cryptographic Musem
Page 1 |
|
Page 2 |
|
| Page 3 | |
| NSA PDF Document | https://www.nsa.gov/about/cryptologic-heritage/museum/assets/files/hobo-signs-definitions.pdf |