Great Northern Railway MOW X5995, Work gondola at Essex, Montana in 1977. Other subject classes: MOW

Great Northern Railway Outfit Car X4053, Flat car made from old tender frame at Essex, Montana in 1977. Other subject classes: Outfit car

Great Northern Railway Outfit Car O1562, converted from boxcar, at Essex, Montana in 1977. Other subject classes: Outfit car

Great Northern Railway Outfit Car O2261, converted from boxcar, at Essex, Montana in 1977. Other subject classes: Outfit car

Great Northern Railway Outfit Car O2707, converted from boxcar. On side: "Butte Division - Office Car" at Essex, Montana in 1977. Other subject classes: Outfit car

Great Northern Railway Water car X6527 at Essex, Montana in 1977. Other subject classes: Water car

Great Northern Railway Water car X6565 at Essex, Montana in 1977. Other subject classes: Water car

Great Northern Railway Water car X930 at Essex, Montana in 1977. Other subject classes: Water car

Great Northern Railway Water car X930 at Essex, Montana in 1977. Other subject classes: Water car