B67-737 DADO PLANE. Sargent Prototype. The actual plane pictured in PTAMPIA II, page 250. To quote Roger: "It is not known if this was developed prior to [Sargent's] manufacture of the Nos. 32 through 35 Dado and Rabbet Planes or if it was an experimental model contemporary with these planes. At any rate, it is the only known specimen extant." Roughly 8" in length with mahogany knobs, japanning 90%, some light corrosion on skate, only has one cutter. From the collection of Harold Unruh. Good+ 500-1000