B58-557 BLOCK PLANE. Boston Metallic Plane Co. The plane shown on page 153 of PTAMPIA I, based on Cyrus Hardy's 1873 patent for the slide-in palm rest. 7" long x 1-7/8" with 1-9/16" iron with no visible mark. Rosewood wedge is unmarked and we can't swear it's original, but if it's a replacement it's a good one. Japanning 50%. Good+ 150-250