Vintage Goodell Tool Co. Butt Gauge (KM)
This combination hinge butt gauge and square was produced by the Goodell Tool Co. between 1894 and 1907, when the company was absorbed by Goodell-Pratt.
From the Old Tool Heaven website: "On December 18, 1894, the Patent Office issued United States Letters Patent No. 531,114 to Albert D. Goodell for a combined hinge gauge and square. Known by tradesman as a butt gauge, the tool was of a type commonly used to scribe lines on a the edges of doors and their casings prior to chiseling recesses for the hinges. Hinges installed in this manner are referred as butt hinges because they are fastened on the edge of the door—which butts against the casing (as opposed to face-mounted hinges such as strap hinges, clamshell hinges or butterfly hinges). Featuring a rugged sheet metal body, the gauge was compact, lightweight, and easy to adjust. It also functioned as a try square for marking the ends of mortises. Goodell's gauge so well designed that the Millers Falls Company marketed it as the No. 227 Combination Butt Gauge until the early 1960s."