The American Flyer 1952 K-335 4-8-4 Northern Steam Engine is a vintage diecast model of a Union Pacific Railroad steam locomotive. This pre-built ready-to-go item is designed in 1:64 scale with a black color scheme, featuring a 4-8-4 wheel configuration and measuring 21 inches in length. The analog control system and two-rail system add to the realism of this classic piece, making it an excellent choice for collectors and hobbyists aged 17 years and up. Made in the United States. I have added a $70.00 Dalee Electronic Reverse Unit in the Tender, this is a four position directional unit that will give trouble free forward and reversing.. Sorry but I do not have the original box.