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Russell Miller of Contoocook, New Hampshire, pulls a cord to start his 1947 Gibson single-piston tractor at the 49th annual Gas Engine Show, Flea Market & Craft Fair at Pratt Field in Bernardston on Friday. -
Several single-piston engines are on display at the 49th annual Gas Engine Show, Flea Market & Craft Fair at Pratt Field in Bernardston on Friday. The heavy iron wheels help keep the engine running with their momentum. -
Rowe resident Austin Willis holds his 3-year-old daughter Harley on his tractor as they pull people around Pratt Field during the 49th annual Gas Engine Show, Flea Market & Craft Fair at Pratt Field in Bernardston on Friday.

