Engine Ambition: Air-Cooled Engines Capture Collector's Interest

Rudy Adrian shows off his air-cooled engine collection.

1915 2 HP Chapman
Rudy's 1915 2 HP Chapman "Economizer" was made in Marcellus, Michigan, by Chapman Engine Works. Note the unusual galvanized tin water hopper and the nice nickel-plated brass tag.
Photo by Bill Vossler