B63-656. JACK PLANE. Holly Patent. Birdsill Holly received his patent in 1852 for the first commercially successful metallic plane. Identical to the plane in Figure 20 of PTAMPIA II but in the 15-1/2" jack plane size with a 2-1/8" Moulson Bros. double cutter. Sole has the fluted corrugations that were probably milled by hand after casting. Brass locking knob is a well done replacement. Overall light surface rust, one chip from the edge of the maple knob. From the collection of Cliff Sapienza. Good+ 400-600