large old Williams/Mack 1-7/8'' & 2'' engineer's wrench, 16'' long

Large old vintage double open end engineers wrench. It is made by J.H. Williams & Co. and is marked with William's W-Diamond logo. This big old engineers wrench is about 16 1/2" long overall. It is marked 1-7/8 inches and 2 inches. This wrench is also marked "17AB285" and "Mack". This old wrench has a patina of age and some minor rust.