This green 40' box car with plug door, has white lettering and white, red and black monad herald and runs on black roller bearing trucks. This 50 car RBL series 98500-98549 was built in October, 1958 by Northern Pacific's Brainerd, Minn., Shops. They were equipped with Pullman-Standard Compartmentizer load dividers and stenciled with the yellow and red Compartmentizer monogram. RBL class includes insulated refrigerator cars without the ice bunkers or refrigeration units used to ship products not requiring refrigeration but still needing protection from weather extremes.