The Antique S-Shaped Curved Wrench is a unique and vintage hand tool measuring 3.5 inches in length, 3/16 inch thick, with 3/8 double open ends. The only manufacturer part number stamped in shaft is TL-585 there is no other markings that I could see. This single item wrench is a rare find for collectors or those looking for a specific tool for their automotive or mechanical projects.