First, this is not a post to sell an item, it is strictly an informational search. I have what I understand to be a rare train set. It is a Lionel 1111 with a die-cast 1001 locomotive. My problem is I cannot find anything on this except a notation on Tandem and Assoc. that the die-cast locomotive does exist but it's rare. I've tried various keywords on google searches and of course eBay but only find the set with a plastic locomotive. I have the Doyle 45/69 book and the Greenberg un-cataloged book, there was a uncatalogued set with the same 1111 number in the 1960's however this was a cataloged set from 1948. My ultimate goal is to make sure the set is 100% complete and to find a current value. As always any help would be appreciated.