This wrench is embossed “Buffalo, NY, US” and “6 inch no 76” on one side. It is embossed “Westcott.” and “Keystone Mfg. Co” on the other side. This wrench was a typical crescent wrench of the day. Estimate ca. 1930 wrench. This wrench was included with Model A’s and John Deer tractors in general tool kits. (as per Stu McNolty).