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WWII S.O.E.TIME PENCILS IN BOX
Special Operations Executive
Time pencils were fuzes timed by acid corroding a thin wire , when the wire broke a spring foced a pin onto a percussion cap exploding a small charge.
Timing could be erratic in different temperatures, a colour code denoted the time period of each fuze. Used mainley by resistance movements in various Countries.
The items shown are colour time code Green.
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- Actor David Niven used these type of timing pencils in the movie "Guns of Navarone". His contained fulminate of mercury. David Niven actually fought throughout WWI in various units.
.......... Kelly Altenhofen, United States, 2nd of October 2018