A certificate shall be issued as soon as practicable after any tobacco has been inspected or weighed for the purpose of the Act. A separate certificate shall be issued for each lot of tobacco inspected or weighed, except when a certificate covering two or more lots is specifically authorized by the Director. In case of a lost or destroyed certificate, a duplicate thereof may be issued under the same number, date, and name by an authorized supervising official. Any such duplicate certificate shall be plainly marked ``Duplicate'' above the signature of the supervising official who issued it.