The Michigan Wheel Corporation of Grand Rapids, Michigan, has stood as a pioneer of marine engineering since its establishment in 1903, transforming water propulsion through proprietary casting methods and sophisticated hydrodynamic design. This vintage three-blade inboard boat propeller is a quintessential artifact of American maritime industry, meticulously cast from heavy manganese bronze to withstand the unforgiving forces of underwater operation. Its robust, sculptural form and balanced blades showcase the precision work of mid-century industrial labor, engineered to optimize thrust while minimizing cavitation. Stamped with small, raised lettering reading 'MICHIGAN' on the back hub, this functional relic represents the zenith of mid-twentieth-century Great Lakes manufacturing.\n\nThrough years of aquatic travel, this authentic propeller has developed a marvelous, deeply layered weathered bronze patina, accented by subtle golden highlights and naturally oxidized green undertones. Rather than obscuring its details, these signs of maritime service imbue the metal with a rugged, tactile beauty that cannot be replicated. It transitions flawlessly from industrial equipment to a striking sculptural focal point for beach homes, modern cabins, rustic offices, or nautical collections. This propeller measures approximately 10 inches in height, 10 inches in width, has a depth of 4 inches, and weighs exactly 8 pounds.