B66-141 INFILL MITRE PLANE. Possibly Erlandsen. Unusually short for a mitre, 4-7/8" long and the 1-1/4" unsigned iron is bedded at a steeper angle, so that it could be bedded bevel down to achieve the same effective blade angle as a traditional mitre without the iron protruding from the rear. Rosewood fill, gunmetal lever cap. Because of the angle, there is a wooden projection from the rear fill piece that acts as a frog to support the iron. Construction resembles the New York infill makers who made tools for the pianomaking industry, and at least one of the handful of known examples is marked by Erlandsen. A few small chips in the body and oxidized, a couple of checks in the wood. There's some white markings on the heel that resemble a model shop number but we can't swear to it. In any case, a very rare and desirable plane. Good+ 1000-2000