big old vintage Armstrong Tool #43 engineer's wrench, 1-13/16'' & 1-5/8''

Large old vintage double open end engineers wrench. It is made by Armstrong Bros Tool Co. and is marked with their "Strong-Arm" logo. This big old engineers wrench is about 17" long overall. It is marked 1-13/16 inches and 1-5/8 inches. This wrench is also marked "43". This old wrench has a patina of age and some minor rust.