| Great action shot of the 1921 Alco-Brooks built Pere Marquette 4-6-2 #715 racing with a string of varnish. Specs - class SP3, 77" drivers, 190 psi boiler pressure, 23x28" cylinders, engine weight of 243,000 lb, tractive effort of 31,067 lb. The class was renumbered upon merging with the C&O and the entire class lasted until 1949-1950. No date, location or photographer listed for this photo. |