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M-209 Cipher Machine

Artifact Details

A brown, compact, and portable mechanical M-209 cipher machine

Cipher machines allowed US soldiers to communicate without enemy forces understanding the message.

The M-209 is a mechanical cipher device designed by Boris Hagelin.  Compact and portable, it used a series of rotors to encode and decode secret military messages.  The US Army widely used the machine during World War II.

13.5 cm x 18 cm x 8 cm

(L x W x H)

Additional Photos

A view of the cipher machine closed