It is perfectly restored and it looks amazing in yellow
Yellowstone is, arguably, the best known National Park and one of the biggest, with two million acres of land in Wyoming, Idaho, and Montana, has 228 kilometers (or 142 miles) of roads.
When you take these numbers into consideration, you understand why busses were always needed to carry visitors around. This particular example, sold at an auction by RM Sotheby's, was one of 98 delivered to the park between 1936 and 1938.
After decades of service, it was retired and has since undergone a complex restoration process. Even the canvas rooftop has been restored, but some features have been added. Power is provided by a 300-cubic inch (4,900 CC) Ford inline six-cylinder engine. The bus also has power assisted steering and an automatic transmission. Some other modern features are a 12-volt electrical system, an electric fuel pump, and Autometer instruments.
The chassis was built by the White Model company in Cleveland, Ohio, and the body was sculpted by coachbuilding service Beder, also of Cleveland. The bus will be auctioned in Pennsylvania on October 5-6 and estimates are that it will fetch a price between $30,000 to $40,000.