Northern Pacific steam locomotive 1507 near the roundhouse at Seattle, Washington, circa 1925. The Class W Mikado was built in 1904. Photo by J.A. Turner. Other Subject Classes: steam locomotive, in a freight yard

Northern Pacific steam locomotive 1507 at Seattle, Washington, on May 11, 1935. Number 1507, a class W built by Alco-Brooks in 1904, is parked at the Seattle roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 1507 at Seattle, Washington, on March 09, 1935. Number 1507, a class W built by Alco-Brooks in 1904, is parked at the Seattle roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 1507, a Class W Mikado, leads a freight train south of downtown Seattle, Washington, circa 1925. King Street Station and the Smith Tower are in the background. Harborview hospital is barely visible on the hill at far right. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific steam locomotive 1602 in the 2nd Avenue yard at Seattle, Washington, circa 1925. The Class W Mikado was built in 1906 and scrapped at South Tacoma, Washington, in 1932. Photo by J.A. Turner. Other Subject Classes: steam locomotive, railroad crew

Northern Pacific steam locomotive 1603 at the roundhouse in Seattle, Washington, in 1925. The Class W Mikado was built in 1906 and scrapped at Brainerd, Minnesota, in 1955. Photo by J.A. Turner. Other Subject Classes: steam locomotive, in the roundhouse area

Northern Pacific steam locomotive 1678 at Seattle, Washington, on May 11, 1935. Number 1678, a class W-1 built by Alco-Schenectady in 1910, is parked at the engine facility in Seattle. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 1679 pauses with a freight train near King Street Station in Seattle, Washington, in 1925. The W-1 Mikado was built in 1910. Photo by J.A. Turner. Other Subject Classes: steam locomotive, railroad crew

Northern Pacific steam locomotive 1679 pauses with a freight train near King Street Station in Seattle, Washington, in 1925. The W-1 Mikado was built in 1910. Photo by J.A. Turner. Other Subject Classes: steam locomotive, railroad crew

Northern Pacific steam locomotive 1728 at Seattle, Washington, on May 12, 1934. Number 1728, a class W-3 built by Alco-Brooks in 1913, clears it steam cocks at the roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo