article_snippet.sent: A HIDDEN DETONATOR WITH SIGHTS ON THE FUHRER .
article_snippet.sent: Otherwise known as ‘pencil detonators’ or officially as ‘Switch, Number 10, Delay’, these were pencil-shaped timed fuses with a vial of corrosive copper chloride at one end.
article_snippet.sent: these were inserted into explosives and used as a 'time delay' to set off a bomb.
article_snippet.sent: To activate a bomb, a vial of corrosive copper chloride was crushed so corrosive copper chloride would begin to dissolve a metal wire.
article_snippet.sent: Once a metal wire snapped, a vial of corrosive copper chloride released a spring that propelled a striker down the hollow tube to the percussion cap, to detonate the explosives the hollow tube had been inserted into.
article_snippet.sent: These were used extensively during covert operations by the SAS in Africa.
article_snippet.sent: One of These was used in the 20 July plot of 1944, in the briefcase-bomb attempt to kill Hitler.
article_snippet.sent: A HIDDEN DETONATOR WITH SIGHTS ON
article_snippet.sent: THE FUHRER used a vial of corrosive copper to dissolve a metal wire, propelling a 'striker' down a hollow tube and detonating explosives the pencil was attached to .