Peterborough, an SP service awaits line clear behind the AN liveried quad combination of Clyde Engineering EMD model AT26C CL class Bulldog CL 11 serial 71-739 which in later life became CLF 2, ALCo model DL541 600 class 605 serial G6015/04 which went on to become BU 1, and EMD model A16C GM class Bulldogs units GM 43 serial 67-529 and GM 46 serial 67-532.