A weapon cunningly contrived to suit the criminal’s purposes was discovered recently by the Boston police. It is a pistol camouflaged as a pocket knife. The knife is about four inches long with a blade half an inch shorter. On the underside is a chamber which holds a 22 calibre cartridge. This is pushed back into the knife handle after loading. A spring activated lever is in the top of the knife. To fire the pistol this lever is pulled out. On snapping back it fires the cartridge.
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