B65-103 PUSH BUTTON BRACE. Winslow Patent. Patented in 1862 by Lorenzo Winslow, of Rochester, as a "method of fastening bits or augers to their stocks or handles." Pushbutton on the front of the chuck releases a notch in the bit. Cast iron construction, 8" sweep, clearly marked with patent information. Rated A by Pearson and the first one we've seen. From the collection of Jim and Christa Schoenky. Good+ 300-600