Northern Pacific interlocking tower at Tacoma, Washington, in 1944. Brick control tower at 15th Street and Pacific Avenue. Photo by J.M. Fredrickson . Other Subject Classes: interlocking tower

Northern Pacific interlocking tower at Tacoma, Washington, circa 1943. Levers inside tower to control switches. Photo by J.M. Fredrickson . Other Subject Classes: interlocking tower, switch equipment

Northern Pacific Half Moon yard at Tacoma, Washington, circa 1910. Looking down on railroad yard from north, freight cars, wharves, general office building and City Hall, Mt. Rainier in distance. Copy of postcard labelled "Gateway to City, Tacoma, Washington," J.M. Fredrickson collection. Other Subject Classes: railroad yard, wharf, office building, government building, freight car, mountains

Northern Pacific General Office Building at Tacoma, Washington, circa 1887. Under construction, with horsecar descending adjacent hill. J.M. Fredrickson collection. Other Subject Classes: office building, streetcar

Northern Pacific General Office Building at Tacoma, Washington, 1887. Black and white sketch from 1887 Tacoma Guide J.M. Fredrickson collection. Other Subject Classes: office building

Northern Pacific General Office Building at Tacoma, Washington, circa 1920. With City Hall, unidentified man. Photo by Alma Floberg, J.M. Fredrickson collection. Other Subject Classes: office building, municipal building, people

Northern Pacific General Office Building at Tacoma, Washington, circa 1920. With City Hall, cable cars on street. Photo by Alma Floberg, J.M. Fredrickson collection. Other Subject Classes: office building, municipal building, streetcar

Northern Pacific General Office Building at Tacoma, Washington, circa 1900. Commencement Bay tideflats in background, horse-drawn wagon climbing adjacent hill. J.M. Fredrickson collection. Other Subject Classes: office building, tideflats, wagon

Northern Pacific General Office Building at Tacoma, Washington, circa 1900. With ceremonial arch, decorated possibly for Spanish American War celebration, people gathered in front. J.M. Fredrickson collection. Other Subject Classes: office building, ceremonial building, people

Northern Pacific General Office Building at Tacoma, Washington, circa 1900. Decorated possibly for Spanish American War celebration. J.M. Fredrickson collection. Other Subject Classes: office building