If anyone looks to pick one of these up, be aware that some (all? - anyone else have an example?) of the master cartons are somewhat mislabeled.
For my Mark Twain version, the correct catalog number for Mark Twain is on the sticker of the master carton, but it is listed as a Lionel Lines version. (This is just the shipping carton, there was no issue with the actual grey box Surefire included in the pics above)
-Dave