Rule 18 - Pre-trial Disclosure and Marking of Exhibits(a) Disclosures and exhibits. When a pretrial is held, except as and to the extent otherwise ordered by the court: (1) Each party shall disclose the theory of his case, including the basic facts that he intends to prove and the names and addresses of all witnesses that he intends to call. (2) Each party shall disclose to all others and permit examination of all exhibits which are in his possession or under his control and which he intends to offer in evidence at the trial. (3) Unless so disclosed, no exhibits required to be disclosed by paragraph (2) shall be received in evidence at the trial over objection unless the court finds that there was reasonable ground for failing to disclose such exhibits prior to trial. Objections to receipt of exhibits for violation of this rule shall be made without the presence of the jury. (4) All exhibits required to be disclosed by paragraph (2), and any other exhibits as may be requested by counsel presenting the same, shall be marked for identification at least one day prior to the trial and shall be listed in any pre-trial order. (b) Effect of pre-trial order. The pre-trial order shall supersede the pleadings where there is any conflict; and shall supplement the pleadings in all other respects.