This is a neat little Marx train set.  It is in an original Marx box, but not sure if it was the one for this set.  Makes a nice collector piece.  All the pieces need some cleaning up, but the locomotive has been oiled and works fine.  Runs forward and backward and smokes nicely.  Set includes: 1666 Locomotive, NYC Tender, Penn. coal car, Santa Fe Boxcar, and a white NYC caboose.  Also includes a Toy Transformer.  Haven't checked to see if it works but looks in good condition.  Check out the pictures and the video.  Good set for its age.  Sold as is.  No Returns.