FT set is DC. They feature separately applied handgrabs, see-through metal grills and fan covers, shell-mounted Accumate couplers (on the ends) and a permanant MU drawbar (between the two units). Other details (body style, dynamic brakes, and steam generators) vary by prototype.
This item is from the collection of Jim Hediger, retired Model Railroader magazine editor. It is believed to be new in box, considered pre-owned.