Any person owning any real property within the corporate limits of the city upon which is erected any building used in whole or in part as a hotel, apartment house, rooming house, lodging house, or tenement house, shall place and maintain at the front of every such building at the principal street entrance thereof a conspicuous plate or sign of metal or wood bearing the name and address of the owner or owners of such building. The letters or characters on such sign or plate shall be in English and of such size and distinctness and the sign or plate be so placed that the name and address can be easily read by persons passing along the street before such entrance. (Ord. 295-74 Ch. 24 § 5, 1974.)