Oliver Chilled Cast Iron Plow, circa 1890

"Chilled" cast iron was the latest thing in plows in the 1870s, a process perfected by James A. Oliver, of South Bend, Indiana. The chilling process involved cooling the cast iron with a stream of water that hardened the metal, and let it polish like steel, allowing it to pull easily through sticky mid-western soils. This plow is in remarkable original condition.