Overview of Civil War Codes and Ciphers

Code and cipher

Decoding Diplomacy « The Junto

Confederate Army Cipher Disk - Civil War Encryption Wheels

An Innovative Technology of War (U.S. National Park Service)

Emerging Civil War

Code Breaker – The Rosenbach

History?s amazing secrets and codes?and how to crack them yourself. This fascinating look at history?s most mysterious messages is packed with puzzles

Mysterious Messages: A History of Codes and Ciphers by Gary Blackwood: 9781101151013 | : Books

Development of Stager Ciphers during the Civil War

Civil War Ciphers: Lord Feilding's Mystery Coded Letter (Nearly) Cracked! - Our Warwickshire

Confederate Cipher Disk - ppt video online download

Top 10 Codes and Ciphers - Listverse

Civil War at the National Cryptologic Museum on Virmuze

History of Codes and Ciphers in the United States Prior to World War One (Cryptographic Series): United States Army Security Agency Historical Section, Barker, Wayne G.: 9780894120268: : Books

Cryptology - Ancient, Codes, Ciphers