Missouri Revised Statutes Title XXXV. Civil Procedure and Limitations § 512.060. Appeal by special order of court

1. When an appeal is permitted by law from a final judgment in the trial court, but the time prescribed for filing the ordinary notice of appeal with the clerk of the trial court as set forth in section 512.050 has expired, nevertheless a party seeking reversal of such final judgment may file a notice of appeal in the trial court, within six months from the date of such final judgment, if permitted to do so by a special order of the appropriate appellate court.  The special order may be allowed by the appellate court, upon motion and notice to adverse parties, and upon a showing by affidavit, or otherwise, that there is merit in appellant's claim for the special order and that the delay was not due to appellant's culpable negligence.  When notified of the issuance of a special order by the appellate court the clerk of the trial court in which the final judgment was entered shall permit the appellant to file a notice of appeal and the appellant shall then proceed to prepare the transcript on appeal as if the appeal had been allowed without a special order.

2. When an appeal is taken after a special order the power to issue a stay is lodged exclusively in the appellate court, which may in its discretion decline to issue a stay or may issue a stay upon such terms with respect to a supersedeas bond as may be appropriate, and in general accord with section 512.080.  The supersedeas bond shall be filed in the trial court and the sureties therein shall be subject to the jurisdiction of the trial court as indicated in section 512.100.  If a final judgment in the trial court is reversed or modified by the appellate court such reversal or modification shall not affect the rights of any person, not a party to such a suit, acquired in good faith after expiration of the time prescribed for taking an appeal without a special order, but before the filing of the notice of appeal by special order.