Oshkosh and Wiscona Pep Engines

Many of the best-known engines came from Wisconsin. So did many of the least known, including the Oshkosh and Wiscona Pep.

The Oshkosh has a single casting for the water hopper, cylinder and base, a risky approach to engine building because a flaw in one area can wreck the entire piece.
Photo by Bill Vossler