Here's something interesting I noticed about the spare tire. What I thought is mildew is the protective film that is sprayed on the white letters. You know, that blue stuff that is on the sidewalls of modern new tires when they arrive. It seems to be on both sides of the tires.
In addition to the tire, the jack does not appear to ever have been used. - there are no paint chips where the post would mount in to the base.
Here's some photos:
The unpainted spot by the center cap opening appears to be a result of the method by which the factory must have had the rim held in a fixture when it was painted. The other NOS spare I have has the very same unpainted notch.
Original valve stem and cap with small dome on the cap.
The jack in its original position