The moldboard plow

Antique shops and heritage museums everywhere are littered with the old, rusted farm implements of our onetime agrarian society, and Texas is no different. Now and then you can even find a mouldboard plow, "the plow that broke the plains." The first American example apparently was the work of Thomas Jefferson, based on what he’d seen in Europe. This early, great technical advance, later improved by American John Deere, is still in use. Although no longer, of course, pushed behind a mule.