Milk Wagon Frame
A wagon used for carrying milk. A wagon or dray is a heavy four-wheeled vehicle. Wagons are distinguished from carts, which are small and have two wheels, or semi-trailors, which are large and have two wheels, and from lighter four-wheeled vehicles such as carriages.
Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)
Courtesy the private collection of Roy Winkelman