It shall be unlawful for any person for the practice of gambling within the limits of the City and County of San Francisco to visit or resort to any such barred or barricaded house or room or other place built or protected in a manner to make it difficult of access or ingress to police officers, where any cards, dice, dominoes, fan-tan table or layout, or any part of such layout or any gambling implements whatsoever are exhibited or exposed to view when three or more persons are present.
(Amended by Ord. 59-58, App. 2/5/58)