Burlington Northern diesel locomotive 9975 at Chicago, Illinois, on August 28, 1972. This is a view of the Zephyr pit at Chicago. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger car.

Burlington Northern diesel locomotive 9975, formerly Chicago, Burlington and Quincy 9975, at Chicago, Illinois, on August 28, 1972. Number 9975 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 18317. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9974, formerly Chicago, Burlington and Quincy 9974, at Chicago, Illinois, on August 28, 1972. Number 9974 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 18316. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9973, formerly Chicago, Burlington and Quincy 9973, at Chicago, Illinois, on August 28, 1972. Number 9973 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 18315. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9966, formerly Chicago, Burlington and Quincy 9966, at Chicago, Illinois in August 1972. Number 9966 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 16707. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9965, formerly Chicago, Burlington and Quincy 9965, at Chicago, Illinois, on August 28, 1972. Number 9965 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 16706. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9965, formerly Chicago, Burlington and Quincy 9965, at Chicago, Illinois, on August 28, 1972. Number 9965 is an E8A built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9965, formerly Chicago, Burlington and Quincy 9965, at Chicago, Illinois, on August 28, 1972. Number 9965 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 16706. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9950, formerly Chicago, Burlington and Quincy 9944B, at Chicago, Illinois, on August 28, 1972. Number 9950 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 9688. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9950, formerly Chicago, Burlington and Quincy 9944B, at Chicago, Illinois, on August 28, 1972. Number 9950 is an E8A built by General Motors Electro Motive Division (EMD), builder's number 9688. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.