Pacific No. 5565 belonged to the Canadian National's K-3-a class. She was built by the Grand Trunk Railway, a component of the later CNR, in 1912. The K-3-a 4-6-2s had 73-inch drivers and 23x28-inch cylinders, and carried a boiler pressure of 195 p.s.i. They weighed 229,000 pounds and exerted 33,630 pounds of tractive effort. Tom Rock of T.D.R. Productions provided this undated photo, taken by an unknown cameraman at Toronto's Spadina Avenue terminal.