All the pieces come with their original boxes and COA except Homer. I have lost the COA for Homer, but this piece is the most common and cheapest. Most of the linking chains are included. I believe only 2 of them are missing. All the pieces are complete and have no broken pieces. A couple of the boxes do have some wear. This collection is very difficult to find in its entirety. The item “Simpsons Christmas Express Train Complete Set of 40″ is in sale since Friday, August 25, 2017. This item is in the category “Collectibles\Animation Art & Characters\Animation Characters\Simpsons”. The seller is “geotrains” and is located in Levittown, New York. This item can be shipped to United States.