B57-061 COMBINATION SQUARE AND BEVEL. Halsted & Ackerman. The earliest patented combination square and bevel; patented in 1855, with a fold-out bevel blade in the brass handle; marked with the patent date which is unusual (faint but legible); modest tarnish but no rust. Corners of the blade rounded but very clean. Good+ 100-200 **All bids must be placed by end of day Friday, October 30, 2020. Auction takes place live-in-person at the Wyndham Garden, York, PA, at 9:00am, Saturday, October 31. Successfully placed bids will be found under My Bids. Current high bids may be obtained by emailing finetoolj@gmail.com or calling (800) 248-8114**