This 50’ gondola with fishbelly sides and drop ends is black with white letting and run on Roller Bearing trucks. This mill gondola was purchased by Rio Grande in 1948, and was eventually seen in general service, coil steel service, copper bullion service, and even crated plate glass service. D&RGW was formed in 1870, and operated the highest mainline railroad in the United States through the Rockies in Colorado at an altitude of 10,240 feet.