BEALE'S TREASURE
ENIGMA MACHINE
nice site for historical ciphers
NATIONAL CRYPTOLOGIC MUSEUM
EDGAR ALLEN POE'S-THE GOLD BUG
the Poe Cipher Challenge
Poe's cipher has been solved
PUBLIC KEY CRYPTOGRAPHY
THE VOYNICH MANUSCRIPT
THE DEATH OF MARY QUEEN OF SCOTS
A SHORT HISTORY OF CRYPTOGRAPHY
THE VENONA FILES
PENN LEARY'S SITE
SIR EDWARD ELGAR'S UNSOLVED CIPHER
ZODIAC CIPHERS AND LETTERS
CIA 'kryptos' CIPHER ARTICLE and the cipher itself
BACONIAN CIPHERS..TERRY ROSS
THOMAS JEFFERSON'S WHEEL CIPHER
material on historical ciphers