TC25-36 BRACE. Armstrong Patent. Patented 10/28/1884 by Arthur Armstrong of Plainville, CT, and manufactured by him, it uses a lever to force the jaws of the chuck closed. Nickel plating 60%, good rosewood head and grip, 8" sweep. "A" rating for rarity in Pearson. From the collection of Jim and Christa Schoenky. Good 60-120