Northern Pacific Class Q-6 steam locomotive number 2260 awaits its next assignment at the Seattle, Washington, roundhouse, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive

Northern Pacific Class Q-6 steam locomotive number 2260 clears its cylinder cocks as it backs to King Street Station in Seattle, Washington, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive,

Northern Pacific Class Q-6 steam locomotive number 2260 awaits its next assignment on the ready track at the Seattle, Washington, roundhouse, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2262 awaits is next assignment at the Seattle, Washington, roundhouse, circa 1928. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2264 passes under the Airport Avenue overpass at Argo in Seattle, Washington, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 steam locomotive number 2264 huals a passenger train at track speed south of Georgetown in Seattle, Washington, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 steam locomotive number 2265 on the ready track at Seattle, Washington, in 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2265 on the ready track at Seattle, Washington, in 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2265 awaits is next assignment at Seattle, Washington, in 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2264 prepares to leave King Street Station with a passenger train in Seattle, Washington, circa 1926. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train