B66-648 GUNMETAL STOP CHAMFER PLANE. Lee Patent. Very rare example of the gunmetal version of Joseph Lee's iconic stop chamfer plane. Lee was constantly fiddling with the design and it sometimes seems that no two are exactly alike; this one is the version shown in Plate 18 of PTAMPIA I, but without the painted tote. Instead of the church window or Bailey-type lever cap found on other examples, it has a locking screw that clamps the right edge of the cutter with the left edge supported by the adjustable fence, as described in the original patent. It has Lee's name and the patent date stamped on the right side along with manufacturer Horace Thurston. Includes original cutter designed to cut a 7/8" recessed quarter round (see Fig. 13 on page 106 of PTAMPIA I). In lieu of the painted tote, it has a stained mahogany tote in the same design, with some small chips and an owner's name. Some light pitting on the iron locking screws. Overall very clean example of one of the true holy grails of patented planes. From the collection of Harold Unruh. Good+ 6000-12000