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 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 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 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 501, Class O-1, at Vancouver, Washington in 1931. Notice the green boiler and cylinder jacketing. Photo by Herbert L. Arey.

Closeup view of tender on SP&S 2-8-2 steam locomotive Number 501, Class O-1, at Portland, Oregon. This locomotive was formerly Great Northern Number 3028 and was built by Baldwin Locomotive Works in January 1913.

SP&S 2-8-2 steam locomotive Number 500, Class O-1, at Vancouver, Washington on September 12, 1942. Notice the wartime blackout hood on the headlight as well as the air cylinder to accuate the hood over the stack. This locomotive was formerly Great Northern Number 3026 and was built by Baldwin Locomotive Works in January 1913. From the Witbeck Studio Collection.

SP&S 2-8-2 steam locomotive Number 500, Class O-1, at Hillyard in Spokane, Washington on June 15, 1947.

SP&S 2-8-2 steam locomotive Number 500, Class O-1, with a three car train at Hillyard in Spokane, Washington on June 15, 1947.

SP&S 2-8-2 steam locomotive Number 500, Class O-1, at Pasco, Washington on April 30, 1945.