Hartzell propeller in cast aluminum and small size. I’m not sure what this is or what it did. It looks used with numbers stamped in. Maybe a boat prop. Possibly a fan blade. Check out the photos for condition. It measures approximately 12 3/8 long. The item “Antique Hartzell Airplane Propeller Aluminum Piqua Ohio Advertising Fan Blade” is in sale since Saturday, February 24, 2018. This item is in the category “Collectibles\Kitchen & Home\Electric Fans”. The seller is “*mechanical_man*” and is located in Zionsville, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia.