Solving Cipher Secrets American Cryptogram Association

From the personal library of and in memory of RISHU



From December 13, 1924 until September 29, 1928, FLYNN's [Detective] [Fiction] [Weekly] published a series of articles about Solving Ciphers, Edited by Crypto Pioneer Merle E. Ohaver.

s a direct result of these articles, the American Cryptogram Association was formed on September 1, 1929

For your solving pleasure, we have scanned and made available all of these original articles both in the original PDF form and a much more readable HTML page.

TRY YOUR WITS ON THE GREAT CODES AND CRYPTOGRAMS IN
WHICH MEN HAVE MASKED THEIR MESSAGES OF LIFE AND DEATH
1924 1926
1925
1927 1928

1924 Ciphers

1925 Ciphers

1926 Ciphers

1927 The National Puzzlers' League Contest Crypts

1927 Simplex Cryptograph Code Messages

1927 Ciphers

1928 Ciphers