Jefferson & M-94 Ciphers
This album has four important objects to examine.
1) Jefferson "Wheel Cypher" from the NSA National Cryptologic Museum in Fort Meade, MD.
2) US Army M-94 Cipher wheel from the author's collection.
3) Two etchings by Maj. Gen. Joseph O. Mauborgne, inventor of the M-94, from the author's collection.
4) US Army "Instructions for Using Cipher Device Type M-94", published Feb. 1922, from the Military History Institute.
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