It shall be unlawful for any person [except a peace officer in actual service and discharge of his duty] to have or carry concealed on or about his person any pistol or other firearm, dirk, dagger, slung-shot, sword cane, spear, brass knuckles, or other knuckles of metal, bowie knife or any kind of knife of weapon except a pocket-knife not manufactured and used for the purpose of offense and defense.