Great Northern Diesel Locomotive 509 at Askov, Minnesota, September 9, 1967, diesel locomotive number 509, a type E-7, leading Train 23. Other subject classes: Passenger train

Great Northern Diesel Locomotive 509 at Grand Forks, North Dakota, February 22, 1970, diesel locomotive number 509, an Electro-Motive Division type E-7, leading Train 8, 1964. Other subject classes: Passenger train

Great Northern Diesel Locomotive 509 at Saint Paul, Minnesota on May 30, 1968. The photograph shows an Electro-Motive Division Type E-7, Great Northern Class E-7. The locomotive is painted in the simplified green and orange scheme. Other subject classes: Locomotive-Diesel

Great Northern Diesel Locomotive 509 at Superior, Wisconsin, August 1968, an Electro-Motive Division type E-7 in the simplified orange/green paint scheme. Other subject classes: Locomotive

Great Northern diesel locomotive 50x an Electro-Motive Division Type E7A at Bellingham, Washington. Other subject categories: Locomotive-Diesel

Great Northern Diesel Locomotive 510 at Saint Paul, Minnesota on July 24, 1967. The photograph shows an Electro-Motive Division Type EA-7, Great Northern Class E-7. The locomotive is painted in the original green and orange scheme. A crew member is visible leaning out of the window of the locomotive?s cab. Other subject classes: Locomotive-Diesel, People-Railroad Crew

Great Northern Diesel Locomotive 510 at Saint Paul, Wisconsin, August 1969, an Electro-Motive Division type E-7 in the simplified orange/green paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 510 at Saint Paul, Wisconsin, March 1969, an Electro-Motive Division type E-7 in the simplified orange/green paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 510 on October 1, 1970. The photograph shows an Electro-Motive Division Type EA-7, Great Northern Class E-7. The locomotive is painted in the simplified green and orange scheme. Other subject classes: Locomotive-Diesel

Great Northern diesel locomotive 510 an Electro-Motive Division Type E7A, at Bellingham, Washington heading south with passenger train past McEvoy Oil Company pipeline, with American Canning Company in background, taken from Taylor Avenue bridge. Other subject categories: Locomotive-Diesel, Train-Passenger