7304-058 UNION SAW CO. try square. Patented in 1903 by Lewis Shireman of Martinsville, IN, and manufactured by Union Saw of Williamsport, PA. The patent feature is a series of perforations in the 6-1/4" blade that can be used to draw lines along a board for ripping. Aluminum handle with decorative "USCo" cast into it; blade is oxidized but unrusted, markings a little faint but legible. (FIS039)