A 19th Century US Patent Model from the Rothschild Patent Museum. This is a 3D scan of a working miniature replica. This 1860s washing machine included a rotating drum to place clothes inside, as well as a local way to heat water from its tray underneath. https://www.google.com/patents/US90416?dq=us+90416&hl=en&sa=X&ei=4z-0U4GLA8OuyAS5q4GIDg&ved=0CB4Q6AEwAAThis is a 3D scan file. It may still have unresolved holes that need to be fixed. The scan is for viewing, and may not print properly on an FDM machine.