TC25-252 MITRE SQUARE. Winterbottom Patent. Very rare example of the combined square and bevel patented by William Winterbottom in 1868. William's brother Charles subsequently patented the different design that was acquired by Stanley and became the basis for the Stanley No. 2. This example is marked with patent date. 3-1/2" rosewood handle with 7-1/2" overall blade, wood clean and metal has overall pitting. Good 150-300