Owing to the amount of advertisements for this wrench in magazines from 1922, I’m going to say that this wrench was introduced then. The patent date stamped on the wrench is Feb 4, 1913.
It came in 8″, 10″, 14″, and 18″ sizes; 14″ and 18″ versions have four jaws instead of two.
Greenfield Tap & Die (GTD) Little Giant 8" Pipe Wrench
Greenfield Tap & Die (GTD) Little Giant 8" Pipe Wrench
American Gas Journal, 1922.
American Machine Tool Record, 1922.
Commercial America, 1922.
Domestic Engineering, 1922.
Domestic Engineering, 1922.
Hardware World, 1922.
Hardware World, 1922.
Machinery Magazine, 1922.