RIVAROSSI HO 5457 UP#3978 4-6-6-4 CHALLENGER W OIL TNDR,HO 4-6-6-4, D&RGW #3803 Model Train | Athearn,Jaap Horst History of Technology page: Rivarossi Challenger,Model Power 874741 N SP USRA 4-6-2 Pacific Steam & Vandy Oil,Model-Power 4-6-2 Pacific with Vandy Oil Tender Great Northern