Leather Billy Clubs - Weapons Universe
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Leather Billy Clubs is a club or sap, a leather-covered hand weapon, designed to hit or knock you out. The round ones were also commonly known as billies, billy clubs, billie jacks, blackjacks, convoys, and the flat ones are also called slappers, slap stick, slapjacks, slap jacks, sap, sapper, beavertail sap basically because of it's unique shape.