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Biscuits and secret messages: The intriguing history of WW2 BBC technology - National Science and Media Museum blog
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MCR1 type 36/I Biscuit Tin Spy Radio Receiver 1943 | Communication radio, Radio, Special operations executive
WWII Spy Biscuit Tin Radio (from warhistoryonline.com) - Communication was very crucial to pass on vital messages to and from the operatives. “The SOE had a team dedicated to making radios and
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Pictogram Set of 4 Simple Flat Icons of protect radio biscuit thanksgiving space Editable Vector Design Elements 19735619 Vector Art at Vecteezy
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