SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, leaving Pasco, Washington on September 2, 1954. Photo by Al Farrow.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, at Spokane, Washington in July 1947. Photo by W.C. Whittaker.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, at the Great Northern servicing facilities at Hillyard in Spokane, Washington on March 28, 1948.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, at the Great Northern servicing facilities at Hillyard in Spokane, Washington. Photo by Harold Hill.

While this photo notes as being at Vancouver, Washington in 1940 the condition of SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, suggests it was taken soon after delivery in 1937.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, in storage at Vancouver, Washington in July 1956. Photo by Stan Styles.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, in the yard at Vancouver, Washington on July 4, 1955. Photo by Jim Morris.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, in storage at Vancouver, Washington in October 1956.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, departing Vancouver, Washington for a run to Wishram on September 23, 1952. Photo by John Labbe.

SP&S 4-6-6-4 steam locomotive Number 902, Class Z-6, departing Vancouver, Washington for a run to Wishram on September 23, 1952. Photo by John Labbe.