It shall be unlawful for any place of business which is not a pharmacy as defined in this chapter to advertise or to have upon it or in it as a sign the words, “pharmacy,” “pharmacist,” “apothecary,” “drugstore,” “druggist,” “drugs,” “medicine store,” “drug sundries,” “prescriptions filled” or any like words indicating that drugs are compounded or sold or prescriptions filled. Each day during which such advertisement appears or such sign is allowed to remain upon or in such place of business shall constitute a separate offense under this section. Upon consultation with the Department of Historic Resources, the Board may grant an exception from this section for such signage on an historic building that formerly housed a drugstore or pharmacy if that building is individually listed as a Virginia Historic Landmark, a contributing property in a Virginia Historic Landmark District, or determined to be eligible for listing by the Department of Historic Resources, provided that the signage relates to the historic character of the building.