I've been going through the piles of items I've kind of tossed aside from collections I've purchased. I found 4 engine boxes for engines that I don't have, and as far as I know, were not in the collections that I've purchased. There are a 2037, 216 (wish I had that engine), a 230, and a 231P box.
Since I didn't necessarily remember what these engines were, I looked them up on Ebay. Imagine my surprise to find someone asking $350 for a 231P box. Is that even possible? I had to pick my jaw up off of the floor. I've sold empty boxes for what I would consider crazy prices but they were for a Congressional Set and a 2341 Jersey Central Trainmaster box, not a small Alco A unit. This price just seemed off the wall. Is the box for the 231P that rare?