Keith, you may recall some ex-PC and CR GP38s with dual controls, some of them ended up on the CM&W (Chicago Missouri & Western) railroad on the ex-GM&O line between Chicago and Kansas City. I spent my senior year in college in 1988 riding around on the Bloomington IL yard engine (obviously a different time), and some of the GP38s, picked up from Helm, had a second control stand, long since disused, facing back from the fireman's side, they were unpopular because they took up space where an extra seat would be. I am not sure why they had the second control stand, 7700 series PC and CR numbers as I recall, they were junkers by then, they threw oil out on the gangway four inches deep..