Evidence as to common gaming-house

Any cards, dice, gaming table or-cloth, board or other instruments of gaming found in any [place] entered or searched under the provisions of the last preceding section, or on any person, found therein, shall be evidence that such [place] is used as a common gaming-house, and that the persons found therein were there present for the purpose of gaming, although no play was actually seen by the police-officer or any of his assistants.