The P. & O. Co. Canton Disc Plow is made entirely of steel and malleable iron, and strong enough to endure the greatest strain in the hardest and most difficult soils. The Canton Disc Plow is built on lines peculiarly our own, and which have not been successfully imitated, as the essential parts are covered by our own patents, and it is the legitimate result of several years of experimenting in soils where moldboard plows will not work.