These 40' standard box cars with single Youngstown door and roofwalk are painted glacier green with white, red and black herald and white lettering. They were built in February 1941 and serviced in January 1961. They run on Bettendorf trucks. Great Northern rebuilt 800 cars in 1961-63 from their original wood-sided box cars within series 45000-52999. Cars in this group were originally built between 1937 and 1942 from various series.