Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in January 1957, with new communications equipment. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in January 1957, with new communications equipment. Photo by J.M. Fredrickson. Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in January 1957, with new communications equipment. Photo by J.M. Fredrickson. Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, on August 31, 1952. "Double Track North" desk with trainsheet, telephone, telegraph key. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, telegraph

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

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

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, circa 1962. Unidentified employees. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, railroad employee

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, circa 1962. Worker installing new "Double Track North" dispatcher's desk, communications panel. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, railroad employee, communications equipment

Northern Pacific communications equipment in dispatchers office, Union Station, Tacoma, Washington, circa 1962. New "Double Track North" desk, communications panel (rear). Photo by J.M. Fredrickson . Other Subject Classes: communications equipment, dispatchers office

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