Great Northern Railway Business car A2, business car in Big Sky Blue color scheme at Seattle, Washington. Other subject classes: Business car

Great Northern Railway caboose in Interbay, Washington, undated. Rear view of a caboose on a freight train. Photograph by James Turner. Other subject classes: Caboose-Wood, Train-Freight.

Great Northern Railway caboose number X1 at Seattle, Washington, circa 1951. Wood caboose in Pacific Coast Railroad service standing at Interbay yard. Other Subject Classes: caboose, railroad yards.

Great Northern Railway wood caboose number X1 at Seattle, Washington, circa 1955. Wood caboose in Pacific Coast Railroad service standing in Stacy Street yard. Other Subject Classes: cabooses, railroad yards.

Great Northern Railway caboose number X1 at Seattle, Washington, circa 1955. Wood caboose used in Pacific Coast Railroad service standing in yard. Other Subject Classes: cabooses, railroad yards.

Great Northern Railway Caboose X1, a caboose owned by the Pacific Coast Railroad, later owned by the Great Northern, with Great Northern herald and safety slogan at Seattle, Washington in 1962. Other subject classes: Caboose

Great Northern Railway Caboose X-113 in Big Sky Blue color scheme at Seattle, Washington. Other subject classes: Caboose

Great Northern Railway Caboose X-145 in Big Sky Blue color scheme at Seattle Washington in 1969. Other subject classes: Caboose

Great Northern Railway Caboose X180, a transfer caboose made from a locomotive frame at Seattle Washington. Other subject classes: Caboose

Great Northern Railway Caboose X-199 in red color scheme at Seattle Washington in 1971. Other subject classes: Caboose