very had a successful line of steam traction engines, including the famous Avery locomotive style, under-mounted model, and promoted its threshers, plows and engines aggressively. reported on the Avery demonstration at the 1906 Iowa State Fair: “These exhibition engines cut up all kinds of didos [ ] and climbed blocks of wood 29 inches high. A little boy of 12 or 13 operated the engine with perfect ease and made it fairly dance a jig. A plowing exhibition [was] given [by a 22hp engine and a 10-bottom plow] in an open field where the ground was as hard as some men’s conscience. A crowd of 10,000 people
