Centralized Traffic Control (CTC) panel, "Double Track South," in Burlington Northern dispatchers office, Union Station, Tacoma, Washington, on December 2, 1970. Photo by J.M. Fredrickson. Other Subject Classes: CTC equipment, dispatchers office,

Centralized Traffic Control (CTC) panel, "Double Track South," in Burlington Northern dispatchers office, Union Station, Tacoma, Washington, on December 2, 1970. Photo by J.M. Fredrickson. Other Subject Classes: signal equipment, dispatchers office,

Burlington Northern signal equipment in dispatchers office at Tacoma, Washington, in 1979. Portion of Centralized Traffic Control (CTC) board. Photo by J.M. Fredrickson. Other Subject Classes: signal equipment

Burlington Northern signal equipment at Tacoma, Washington, in 1982. Centralized traffic control desk, dispatcher Duke Tone, l., unidentified, r., in dispatchers office. Photo by J.M. Fredrickson. Other Subject Classes: signal equipment, railroad employee, dispatchers office

Burlington Northern train dispatcher Duke Tone at Tacoma, Washington, in 1982. Tone at Double Track North Desk in dispatchers office. Photo by J.M. Fredrickson. Other Subject Classes: railroad employee, communications equipment, dispatchers office

Northern Pacific control panel at Tacoma, Washington, circa 1962. Portion of track control panel in staton at UP Jct. Photo by J.M. Fredrickson . Other Subject Classes: control panel, station

Northern Pacific control panel at Tacoma, Washington, circa 1962. Portion of track control panel in staton at UP Jct. Photo by J.M. Fredrickson . Other Subject Classes: control panel, station

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, circa 1942. Three men at desks, with standard clock and other items. Other Subject Classes: dispatchers office, railroad employee

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in 1943. Three men at desks, with standard clock and other items. Other Subject Classes: dispatchers office, railroad employee

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, circa 1962. Communications technician Frank Callas, telegraph and direct station telephone. Photo by J.M. Fredrickson. Other Subject Classes: dispatchers office, telegraph, communications equipment