Amtrak diesel locomotive 534 at Seattle, Washington, circa 1978. Train number 11 at King Street Station. Seattle skyline in the background. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 536, an EMD SDP40F at Seattle, Washington in August 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 536, an EMD SDP40F at King Street Station in Seattle, Washington, circa 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 539, an EMD SDP40F next to the King Dome construction at Seattle, Washington on August 22, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 539, an EMD SDP40F next to the King Dome construction at Seattle, Washington on August 22, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 553, an EMD SDP40F near King Dome construction at Seattle, Washington in August 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 560, an EMD SDP40F at the Interbay Engine Facility in Seattle, Washington on May 10, 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 573, an EMD SDP40F near the the King Dome at Seattle, Washington in 1979. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 574, an EMD SDP40F at King Street Station in Seattle, Washington in 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 574, an EMD SDP40F at King Street Station in Seattle, Washington in 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train