John Solomon Catelo of Boston developed a folding draw knife mechanism through series of patents from 1883 to 1885 that is the most sophisticated in the business. Not only is the mechanism unmatched, but the quality of the construction of the drawing knife is far more rugged, graceful and heavy duty than that of any other. This example features more of the nickel plating than is usually found on Cantelo knifes, and has the solid heavy handles for which the Cantelo product is famous. This 8 inch example has the sliding screw release mechanism that works easily and is the best of several other patents. The blade is deep, and suffers only one small edge chip at the far left side. The mark is very light, but the maker is without doubt Cantelo. This is a very good example of the premium folding draw knife. Good+