WW2 British & Commonwealth Forces 'Visor Knife' escape compass weapon in the form of a compact brass housing/sheath. One side slides over the other revealing an escape and evasion razor blade. Approximately 50 x 23 x 1.5mm and very similar in appearance to an American Forces 'dog-tag' (possibly used by US Forces too). The housing is stamped 'VISOR KNIFE' and has a small hole at one end to allow for a lanyard, the blued steel blade was manufactured by Gillette in England. It could be used as a weapon but has been magnetized so that when suspended by a thread in a glass of water it would act as a compass for escape and evasion purposes. Very good condition. Rare. Stock code S26986.