Object Record
Images
Metadata
Object Name |
Disk, Cipher |
Catalog Number |
0985.09.00068 |
Description |
The cipher disk (or coding disc) is a brass disc with "C.S.A. S.S." in red Gothic script in the center. The outer circle spins on a pivot pin and is marked with letters of the alphabet, which are used to match against the inner circle's similar marking. No inscriptions on reverse; three marks, that could be a crude Roman numberal "III" or a rough "M", are engraved near one edge on reverse. |
Material |
Metal/Brass/Paint |
Dimensions |
D-0.375 Dia-2.25 inches |
Provenance |
The coding or cipher disc was used by the Confederate Secret Service to translate messages. |
People |
unidentified Confederate soldier |
Search Terms |
Secret Service Bureau Special and Secret Bureau of the War Department Confederate Secret Service |
Subjects |
Ciphers Cryptology Encryption Espionage Secret service Spies Spying |