The O Williams 22616 Locomotive Set PA-1 Powered and Dummy Diesel Locomotive and Two 22716 PB-1 Dummy Loco . ABBA set, only one A unit powered. Scale model replicas of Canadian Pacific Railway locomotives. Manufactured in 1982, these O gauge trains feature multicolor paint schemes with light functions, making them a detailed and realistic addition to any model railroad collection. Designed to run on a Three-Rail System, these trains are sure to delight collectors and hobbyists alike with their accurate representations of Canadian Pacific locomotives. New just opened box