Great Northern Steam Locomotive 2551, Class , undated. Photograph by Wade Stevenson.

Great Northern steam locomotive Number 2551, a 4-8-4 at Devils Lake, North Dakota in June, 1947.

Great Northern Steam Locomotive Number 2551 at Saint Paul, Minnesota, 1929.

Great Northern steam locomotive 2551 at Minneapolis Junction, Minnesota on January 1, 1957. Class S-1. Norm Priebe Collection. Photograph by Vierkant. Black & white negative, 2 7/8 inch x 4 3/4 inch. Other Subject classes: Steam locomotive

Great Northern Steam Locomotive 2551, Class S1 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive Number 2551 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive 2550, a Class S-1, a 2-8-2, built by Baldwin Locomotive Works in 1929, 28"x30" cylinders, 73" drivers, 250 psi steam pressure, 472,000 pounds weight, 68,500 pounds tractive effort. There were six locomotives in the Class S-1, Numbers 2550-2555, purchased to pull the Oriental Limited and later the Empire Builder but they were not able to climb the Rocky Mountains fast enough, so were used on freight from Spokane, Washington to Troy, Montana during the 1930s. They were very hard on track and were sold to the Chicago Northwestern. Taken at an unknown location. From the David Emerson Collection, a Maynard Rikerd photo, undated.

Great Northern Steam Locomotive Number 2550, Class S-1, undated.

Great Northern Steam Locomotive 2550, Class S1, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive Number 2550, Class S-1, with passenger train, undated.