The Mack Dunn Coal Truck was ordered in 1927 by Dunn Coal and Oil of Federal Street in Chicago. It's said that the truck, which is unrestored, is the only original survivor. The truck was used to deliver coal during the winter months, bringing ash and rubbish back to the landfill after the coal was delivered. During the summertime, the truck was used to deliver cold mix asphalt for paving work. The truck was purchased by Waste Pro Chairman and CEO John Jennings in 2013, and it's the most expensive museum truck investment to date.