B66-366 ADJUSTABLE BRACE. Sutton Patent. Unmarked but appears to be an example of Delay Sutton's 1875 patent as manufactured by the Diamond Wrench & Tool Co. of Portland, ME. The patent describes a single-jaw chuck design, and also describes a wrench frame in which the chuck assembly and knob can be slid to different positions, or reverse or removed entirely for carrying or storage. This brace has a standard Barber-type chuck, but has the second feature. 15" long, 11" sweep at its lowest position. There's a small split in the beech grip and some light surface pitting but overall clean. From the collection of Jim and Christa Schoenky. Good 100-200