Converter M-209 (cipher)

Converter M-209 is a small, compact, hand-operated, tape-printing, mechanical device designed for rapid enciphering and deciphering of tactical messges. It was used by divisions and lower units, down to and including battalions. [Info from TM11-380]

101st Airborne Signal Company personnel setting up M-209 Converters in Holland during Operation Market Garden. Note the man standing in the centre has Glider wings pinned to his M43 Jacket and has the marking for the 101st A/B Signal Co. painted on his M1 Helmet.

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