The Goodall 20, owned by Floyd Lorenz and Dean Tapley, Elsberry, Mo. The top of the line in rotary mowers in its day, the Goodall sold for $110 in 1946. Invented by LEonard Goodall, Warrensburg, Mo., the Goodall was produced briefly before WWII, and again after the war. The company was sold in the early '50s. Early models were powered by a four-cycle Lauson engine.