Notice of such order shall be placed upon said junk vehicle or personal property. Copies of said notice shall be served upon any adult occupying the real estate on which the junk vehicle or personal property is located and upon the owner of the junk vehicle or personal property if known. If no occupant of the real estate or owner of the junk vehicle or personal property can be found, a notice affixed to any building on the real estate shall constitute notice to the owner or occupant of the real estate and to the owner of the junk vehicle or personal property. If there is no building on the real estate said notice may be affixed elsewhere on the real estate. (Ord. 411, 7-8-1970)