huge antique Armstrong Bros #12 chain wrench, vintage Strong Arm plumbing tool

Huge antique plumber's chain wrench made by Armstrong Bros Tool Co. It is marked for 1/4" up to 2-1/2" diameter pipe and measures 27" long. This old wrench also has the Armstrong trade-marked "Strong Arm" forge mark on the handle. This logo was originally trade-marked by Armstrong Bros in the 1880s.

This has light rust and a patina of age.