Century-old LEMON used by German spy to send secret messages from Britain in invisible ink during WW1 goes on display
A 110-year-old lemon used by a German WW1 spy to send secret messages from Britain with invisible ink is going on display in ...
Lemon found in German spy's drawer sealed his death sentence
A collection of never-before-seen files, photographs and items from MI5's own archives are going on display for the first ...
What a 110-year-old lemon tells us about espionage history
In 1915, a German spy was executed after he was caught with a lemon in his pocket. A new exhibit in the U.K. shows how he used it for espionage.
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Unveiling MI5: Secrets of a Century-Old Spy Agency
Official Secrets,' an exhibition unveiling espionage methods and equipment used by Britain's spy agency. MI5 director Ken ...
Secrets, spy tools and a 110-year-old lemon are on show in an exhibition from Britain's MI5
The lemon, now black and shriveled, helped convict Karl Muller, a German spy in Britain during World War I. It was found by ...
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Century-old LEMON used by German spy to send secret messages from Britain in invisible ink during WW1 goes on display
A 110-year-old lemon used by a German WW1 spy to send secret messages from Britain with ... fruit was one of two lemons found on enemy agent Karl Muller in 1915 after he was arrested for spying.