Rule 12 - Exhibits. 

(a) Every exhibit placed on file or offered in evidence shall be held in the custody of the clerk. Unless there is good reason why the original of an exhibit should be retained, upon application, the court may order a copy filed in its place. Public records offered in evidence may be withdrawn at the conclusion of the hearing on order of the court.

(b) Exhibits may be withdrawn by the party offering them thirty days after a judgment has become final. Forty-five days after a judgment has become final, the clerk may apply to the court for an order to dispose of exhibits, and shall notify the parties of the application. Twenty-one days after mailing of the notice the court may enter its order authorizing the clerk to dispose of exhibits.