This New York Central passenger set is probably the most rare of the Marx scale sets. These
sets are very hard to find in the open window variation but this unpunched set is next to
impossible.
I now know there is a Vista Dome car with unpunched windows. I am not at liberty presently to show the picture. When my Plastic CD comes out it will be included there.
This is the number shown on the typical Marx box this set was found in.
(Courtesy of Trip Riley)