B66-500 SMOOTHING SOLE PLANE. Iver Johnson No. 1205. Based on O.R. Chaplin's 1888 patent for the cutter adjustment, and manufactured by Iver Johnson, an arms manufacturer who added (and patented) the vulcanized rubber tote that had been used for pistol grips (fine on this example). Corrugated on both the top and bottom of the 9" sole, with "Chaplin's Improved" cast around the knob and "No. 1205" ahead of the throat. Original marked 2-1/8" cutter. The various patent dates are also marked (faintly) on the cheek. Nickel has mostly worn off the lever cap and there is some light overall pitting, front knob worn. From the collection of David Jeffers. Good 80-160