Meet between Great Northern Railway trains 23 and 509 at Askov, Minnesota in 1967 with Class E7-A number 509 and Class SD-9 number 574. Big Sky Blue color scheme.

Great Northern Railway 307C at Askov, Minnesota in 1967. The locomotive is heading the second part of train 408 at Askov, Minnesota with SD-9 Number 574. Other subject classes: Locomotive, SD-9

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