These 40’ box cars with single doors are painted green and orange with black, white and green logo, and white lettering. They were built in March 1948 and run on roller bearing trucks. Twenty-five of these box express cars with the orange and green loader schemes were among a 1000 car order of all steel box cars. Great Northern was the last major railroad to purchase all-steel box cars. Box Express cars were used for mail and express traffic.