SP&S 2-8-2 steam locomotive Number 502, Class O-1, at Vancouver, Washington on February 7, 1932. This locomotive was formerly Great Northern Number 3029 and was built by Baldwin Locomotive Works in January 1913.

SP&S 2-8-2 steam locomotive Number 502, Class O-1, at Vancouver, Washington. Notice the fresh green cylinder jacketing and black cylinder head covers.

SP&S 2-8-2 steam locomotive Number 503, Class O-1, at Portland, Oregon in 1939. This locomotive was formerly Great Northern Number 3099 and was built by Baldwin Locomotive Works in August 1917. Photo by Herbert H. Arey.

SP&S 2-8-2 steam locomotive Number 503, Class O-1, is in the siding with aq freight train as a passenger train passes by on the main line somewhere on the Vancouver Division in eastern Washington..

SP&S 2-8-2 steam locomotive Number 503, Class O-1, at Vancouver, Washington in August 1942. Notice the wartime blackout hoods on the headlight as well as the class lights.

SP&S 2-8-2 steam locomotive Number 504, Class O-1, is next to the oil standpipe at Portland, Oregon on April 21, 1940. This locomotive was formerly Great Northern Number 3039 and was built by Baldwin Locomotive Works in January 1913. Photo by Herbert H. Arey.

SP&S 2-8-2 steam locomotive Number 504, Class O-1, at Portland, Oregon

SP&S 2-8-2 steam locomotive Number 504, Class O-1, at an unknown location and date.

SP&S 2-8-2 steam locomotive Number 504, Class O-1, at Vancouver, Washington on April 1, 1939. Notice that the stack hood is in the up position.

SP&S 2-8-2 steam locomotive Number 504, Class O-1, at Vancouver, Washington in May 1933.