B65-139 INFILL SMOOTHING PLANE. Norris No. 51. Part of the "No. 50" series introduced by Norris in its 1914 catalog to compete with the Stanley-type bench planes that were invading the British market, they were designed to be more economical than the traditional dovetailed planes and featured Norris's patented cutter adjustment. Annealed iron, with 7" straight-sided sole, stamped "Annealed" and "Reg'd No. 637723" on the toe, closed tote, rosewood fill, gunmetal lever cap with model number, 2-1/4" original double iron. User name stamped on both cheeks and some mild scratching to the wood, otherwise very clean. From a legendary collection of infill planes. Good+ 150-300