When Lionel re-issues a set such as the #2421, 22, 23, and 29 passenger cars, with the same number, is there any way to determine the new number from the old if you do not have that information, or a new car that may have that number stamped on the bottom? Of course the 6-XXXX does not work, and so far, have been able to find a listing in Greenberg's for the re-issue cars.
Original Post