Bud,I don't know if any came factory with the wood grips,mine didn't, but they sure look nice with the wood.
The standard King Cobra shipped with Pachmayr "Gripper" grips with Gold Colt medallions.
Since the Trooper Mark V, King Cobra, and Anaconda all had the same grip frame and used the same grips they were interchangeable.
The Trooper Mark V shipped with wood, and some limited models of the King Cobra and Anaconda shipped with various wood grips.
Wood grips would not be "correct" for a King Cobra but wouldn't be totally out of place.