City Ordinances, § 287. Whenever there shall be found upon the person of any one, who has been found guilty of a breach of the peace, or for conduct calculated to provoke a breach of the peace, any pistol, revolver, bowie-knife, dirk, rifle, shot gun, slung-shot, colt, or knuckles of lead, brass or other metal; or when, upon trial, evidence shall be adduced proving that such weapons were in the possession or on the person of any one while in the act or commission of the act aforesaid, such person shall be fined not less than twenty-five nor more than …