Highway Post Office bus

White Motor Company · 1941-1960s

This bus was the first Highway Post Office vehicle to operate in the United States. Its 149-mile route, which ran between Washington, D.C., and Harrisonburg, Virginia, was inaugurated on February 10, 1941. The White Motor Company of Cleveland, Ohio, designed and built the bus. The term 'Highway Post Office' is abbreviated either by the initials 'HPO' or by the more affectionate term 'HyPO'.