B63-546. JACK PLANE. Boston Metallic Plane Co. Boston Metallic was only in business for a year or two in the 1870s but managed to produce a couple of memorable, if not particularly practical, planes. This one is most commonly associated with Cyrus Hardy's 1872 patent for the large open holes in the sole, intended to reduce weight and friction, but it was also covered by Baldwin's 1873 patent for the cutter depth adjustment mechanism, which in production was simplified by including a bend in the cutter itself that engages the adjusting screw. This one, unlike most, has the Hardy patent date stamped on the cheek, and is one of the nicest examples we've seen, with the characteristic geometric design on the lever cap (a little worn), and japanning intact. The only apology is a small chip in the mouth. From the collection of Steve Dice. Fine 1000-2000