B61-107 BRACE. H.S. Shepardson Patent. Shepardson, of Shelburne Fall, MA, was a manufacturer of braces and had a number of patents, but this is his only brace patent, granted 3/1/70. It provided for a set of curved sliding jaws tightened by the chuck shell. Relatively uncommon, it is rated B for rarity by Ron Pearson. Mark is light but legible, 10" sweep, cast iron head and rosewood grip. Good+ 50-100