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Morse Telegraph for Schools, c. 1910...
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Electromagnetic Needle Telegraph, c. 1900...
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2 Cooke Wheatstone Single-Needle Telegraphs, ...
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Italian Army Field Telegraph, c. 1880...
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German Telegraph System by Lorenz, c. 1890...
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3 Telegraphy Demonstration Models, c. 1910...
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Swedish Transceiver, c. 1923...
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Russian Tank Transceiver 10 RT, c. 1955...
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Military US BC-191-N Transmitter, c. 1944...
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Hagelin C-446-A Cipher Machine, 1944...
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USSR "Fialka M-125-3MP2" Cipher Machine, 1965...
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Hagelin C-446A "MX-3003" Cipher Machine, c. 1...
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Nema T-D Cipher Machine, 1946...
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Hagelin Crypto CD-57 RT Cipher Machine, 1957...
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Rare American 6-Rotor Cryptographic Machine ...
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"Thomas' Arithmomètre", c. 1870...
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"Adix", 1903...
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Gordon's Addometer, c. 1875...
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2 Pocket Watch Calculators...
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"The Brical – Money Calculating Machine", c. ...
