Northern Pacific steam locomotive 1507 at Tacoma, Washington, on August 18, 1935. Number 1507, a class W built by Alco-Brooks in 1904, is parked at the Tacoma roundhouse after leaving the South Tacoma shops. 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 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 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 Livingston, Montana, on May 23, 1954. Number 1507 is a class W built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1506 at Spokane, Washington, in 1941. Number 1506, a class W built by Alco-Brooks in 1904, poses with an eastbound local freight. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train

Northern Pacific steam locomotive 1505 at South Tacoma, Washington, on May 09, 1937. Number 1505 is a class W built by Alco-Brooks in 1904. Photo by Emery Roberts, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1505 switches cars at Seattle, Washington, circa 1925. The Class W Mikado was used as a helper on Stampede Pass and later on the Auburn-to-Seattle transfer in the mid-1920s. Photo by J.A. Turner. Other Subject Classes: steam locomotive, railroad crew

Northern Pacific steam locomotive 1505 is parked at Seattle, Washington, circa 1925. The Class W Mikado was used as a helper on Stampede Pass and later on the Auburn-to-Seattle transfer in the mid-1920s. Photo by J.A. Turner. Other Subject Classes: steam locomotive, in a freight yard