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Early Telephone and Telegraph Accessories, 19...
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The Junior Field Wireless Telegraph Station, ...
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Coherer Receiver Station, c. 1905...
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American Candlestick Telephone by De Veau, c....
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Skeleton Telephone by L.M. Ericsson, c. 1905...
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Mark III Short-Wave Tuner, 1916...
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Military VHF-Receiver E-628...
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Telefunken Detector Receiver and Spark Transm...
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British Type 3 MKII Spy Radio Set, 1941...
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PRT-20-1 Portable Radiotelephone, c. 1960...
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2 Military Wireless Transceivers, USA, c. 194...
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WWII US Army Signal Corps Radio Receiver BC-3...
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WWI Airman's Wireless Set, c. 1916...
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"M.C.R.1 Midget Communication Receiver", 1944...
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No. 17 MKII Transceiver Wireless Set, c. 1941...
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Hagelin CD-57 Pocket Cypher Machine, c. 1957...
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Pocket Cypher Machine by AB Transvertex...
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Ciphering Machine Enigma (K-Model) with addit...
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Hagelin C-38S Cypher Machine, 1938 onwards...
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Hagelin Cryptos BC-543 Cypher Machine, c. 195...
