Sale. Whenever any motor vehicle or part thereof is in the custody of the Director of the Department of Public Works and whenever the owner or person entitled to the possession thereof cannot be located and fails to claim such motor vehicle or part thereof for a period of sixty (60) days after such motor vehicle or part thereof came into the custody of the Director of the Department of Public Works, the same may be disposed of by the Director of Public Works, at public sale, at any time between the hours of 10:00 a.m. and 6:00 p.m., provided that an advertisement of the time, place and terms of the sale, together with a full, detailed description of such motor vehicle or part thereof shall be inserted in at least two (2) newspaper of general circulation in the county, at least once each week for two (2) successive weeks prior to the sale, provided, further, that a notice by registered mail shall be sent at least ten (10) days prior to the sale to the owner and lien holder, if any, shown on the records of the State Motor Vehicle Administration or the person entitled to the possession of such motor vehicle or part thereof, if his address is known or if it can be ascertained by the exercise of reasonable diligence. If such address cannot be ascertained, such notice shall not be required.