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Instruments of Science & Technology / A NEMA TD 772 CIPHER MACHINE, SWISS, MID-20TH CENTURY,

Lot 18
A NEMA TD 772 CIPHER MACHINE,
SWISS, MID-20TH CENTURY,
28 September 2022, 14:00 BST
London, Knightsbridge

Sold for £6,375 inc. premium

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A NEMA TD 772 CIPHER MACHINE, SWISS, MID-20TH CENTURY,

makers plaque stamped TD 722, the 10-wheel cipher machine used by the Swiss Army and Diplomatic Corp, complete with standard keyboard, corresponding light-up displays, remote display, wiring, in painted metal case, stencilled TD 722,
the machine 11 1/2 in (29cm) wide
12 3/4in x 5 3/4in x 14 1/2in (32.5cm x 14.5cm x 37cm) overall

Footnotes

The NEMA utilised a total of 10 rotors: 5 for enciphering the alphabet, and 5 paired rotors which give irregular stepping of the rotors. This was a marked improvement over the original German counterpart, Enigma. The present machine is understood to have once been kept in war-reserve storage, only to be issued if war broke out.

Additional information