B65-536 JOINTER. Challenge Plane. Patented by Arthur Goldsborough in 1883 and 1884, manufactured by Iver Johnson and distributed by Tower & Lyon. Unlike the shorter versions which have the word "Challenge" cast into the yoke, this one has "Challenge" and the patent dates cast into the body by the toe. All Challenge planes are very rare, and PTAMPIA concludes that there was only one production run before T&L gave up on them as a bad idea. There's a crack in the wooden tote inlay and an old repair to the right side of the yoke, where a piece of metal has been used to hold a crack together. The square headed bolt holding the knob is probably a replacement. Despite its issues, a very rare plane, particularly in the jointer size. From the collection of Harold Unruh. Good 200-400