Great Northern Railway 508 at St. Paul, Minnesota in 1963. The locomotive is a General Motors Electro Motive Division Model E-7. Stamped "R.T. Smart" on cardmount on one side, "Karl C Henkels" on other side. Other subject classes: Locomotive, E-7

Great Northern Railway 508 at St. Paul, Minnesota in 1967. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 509 at St. Paul, Minnesota in 1969. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 510 at St. Paul, Minnesota in 1969. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 510 at St. Paul, Minnesota in 1969. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 511 at St. Paul, Minnesota in 1967. Train 11 Red River with General Motors Electro Motive Division E-7 number 511 at St. Paul Minnesota 1965. Other subject classes: E-7, Locomotive

Great Northern Railway 511 at St. Paul, Minnesota in 1969. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 512 at St. Paul, Minnesota in 1969. The locomotive is a General Motors Electro Motive Division Model E-7. Other subject classes: Locomotive, E-7

Great Northern Railway 551 at St. Paul, Minnesota. The locomotive is a General Motors Electro Motive Division Model SD7. Other subject classes: Locomotive, SD-7, Shop Building

Great Northern Railway 652 at St. Paul, Minnesota. The locomotive is a General Motors Electro Motive Division Model GP-7. Other subject classes: Locomotive, GP-7