1876 Iowa Acts 142, An Act to Diminish Liability to Railroad Accidents and to Punish Interference with, and Injury to the Property of Railroad Companies, chap. 148, § 1.

If any person shall throw any stone, or other substance of any nature whatever, or shall present or discharge any gun, pistol, or other fire arm at any railroad train, car or locomotive engine he shall be deemed guilty of a misdemeanor and be punished accordingly.