Northern Pacific steam locomotive 2600 at the roundhouse in Seattle, Washington, circa 1946. Number 2600 is a class A built by Alco-Schenectady in 1926. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 252 at the roundhouse area at Seattle, Washington, in 1941. The P-1 Ten-Wheeler was built in 1898 and scrapped at South Tacoma, Washington, in 1941. Photo by J.A. Turner. Other Subject Classes: steam locomotive, in the roundhouse area

Northern Pacific steam locomotive 252 pulls a mail and express car and a coach at Airport Way in Seattle, Washington, circa 1935. The Class P Ten-Wheeler was built in Schenectady, New York, in 1898, and scrapped in South Tacoma, Washington, in 1941. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific steam locomotive 252 pulls a mail and express car and a coach in Seattle, Washington, circa 1935. The Class P Ten-Wheeler was built in Schenectady, New York, in 1898, and scrapped in South Tacoma, Washington, in 1941. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific steam locomotive 246 leads a passenger train out of King Street Station in Seattle, Washington, circa 1925. The P-2 Ten-Wheeler was built by the American Locomotive Company in Schenectady, New York, in 1902, and scrapped in South Tacoma, Washington, in 1936. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific steam locomotive 246 at Seattle, Washington, on March 09, 1935. Number 246, a class P-2 built by Schenectady in 1901, is parked near the Seattle roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 246 at the coal dock in Seattle, Washington, circa 1925. The P-2 Ten-Wheeler was built in 1902 and scrapped at South Tacoma, Washington, in 1936. Photo by J.A. Turner. Other Subject Classes: steam locomotive, gondola car

Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950. Number 2451, a class T built by Alco-Brooks in 1907, is parked north of the Seattle roundhouse. Photo by Blackie Moser, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950. Number 2451, a class T built by Alco-Brooks in 1907, is parked near the Seattle roundhouse. Photo by Blackie Moser, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950. Number 2451, a class T built by Alco-Brooks in 1907, is parked near the Seattle roundhouse. Photo by Blackie Moser, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo