Item:
RARE British WW2 SOE No9 Pressure Switch, ib great shape, these are extremely rare and hard to find, this particular one is a MKII
 
(Special Operations Equipment) Pressure fuzes were used to make objects into booby traps, used by British special forces as well as provided to resistance across Europe. 
 
INERT - F.F.E (Free From Explosives)
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