Caption: CN Plow Extra running in an eastward direction thru London back in March of 1978; Plow is #55614, power is CN 9179, 4530 and caboose 79874. Winter is beginning to fade, the snow looks old with a new dusting to give the scene some freshness. I am not exactly sure where this image was shot, I can only remember somewhere east of downtown; as the skyline has changed dramatically since. The F7Au was one of a series all retired by 1989. Assume it went for scrap.