After WWII, Germany was barred from producing complex cipher systems of her own so licensed designs from other ountries were produced in Germany. Hell (of Kiel) made a series of machines including versions of Crypto AGs C52 and CD57 (well-liked by the French). The STG61 is a copy of the CD57. It is designed to fit in a large pocket, in a military greatcoat, and also fits well in the hand. The operation of the device is quite simple.

Photos and copy courtesy John Alexander, G7GCK Leicester, England. E-mail: See Museum Info section.

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Feb 17/02