Caption: OSR 1591 and OSR 8235 (both Ex CP GP9Us) sit beside the historic Woodstock CP station as they wait for 2 cars from CP T69. At the same time, the OSR car pulls up to the station as the full crew heads into the station building. The OSR car always has a crew member and it follows the train along, dropping the crew member off in various places to throw a switch, uncouple a car, and more. This eliminates the necessary walk along the train to get back to the engines. This was the start of a chase that I partook in so hopefully more photos of this fantastic duo will appear soon!