| The Soo shops got into building 4-8-2 Mountain type steam locomotives by assembling the last three of the N-20 class. Specs - Class N-20, 69" drivers, 200 psi boiler pressure, 27x30" cylinders, engine weight of 338,700 lb, tractive effort of 53,883 lb. No date or location were given for the photo. Arthur B. Johnson photo |