Hmmmm, let's see.... first off, that engine does not belong to the actual Savage company, I can see that the little I.D. marking under the cab window end in an 'X', which is almost always used to mark leased rolling stock (I think it's used for military trains, I dunno). Second, it's a B23/30-7 or a close relative, I can tell because I own a model of a B23-7 and that engine looks close to my model, and third, it's probably an ex-Conrail because of the second observation (B23/30-7's used to head all of Conrail's hottest freights)