SP&S 2-8-0 steam locomotive Number 302, Class N-4, at Portland, Oregon on October 7, 1931. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at Lyle, Washington in 1941.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at unknown location and date.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at Wishram, Washington on April 21, 1940. This locomotive was formerly Northern Pacific Number 71 built by Baldwin Locomotive Works in September 1888.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Portland, Oregon in April 1932. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Portland, Oregon. Photo from the Railroad Museum of Pennsylvania Collection.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Vancouver, Washington on November 15, 1942.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Vancouver, Washington on November 15, 1942.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at the shops at Vancouver, Washington in November 1941. This locomotive was formerly Northern Pacific Number 72 built by Baldwin Locomotive Works in September 1888.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Vancouver, Washington. Notice the green painted boiler and cylinder jacketing.