B66-538 SMOOTHING PLANE. Worrall Patent. Before Thomas Worrall founded the Multiform Plane Co., in 1857 he patented a method of adjusting cutter pitch through a screw through the heel of the plane. Most of the surviving examples are jointers, but this is the rare smoothing plane length, identical to Figure 29 in PTAMPIA I, including the fact that neither the toe nor cutter are marked. Wood very clean with original finish, a couple of scratches on the sole, metal near mint. Fine 200-400