Irland Pipe Wrench Co. Lever Adjusting Pipe Wrench Antique

This is a clean and rare example of a patented 10" spring loaded lever adjustable pipe wrench, marked ".R_AND PIPE WRENCH CO. BOSTON MASS. U.S.A. PAT. JULY 7-SEPT.22.1903 OCT.3.1905". This unique wrench has a lever on the handle that is spring loaded, and is basically self-adjusting after you push the lever to the handle and set the wrench in place on the pipe. The serrated jaws are in very good condition, with minimal wear noted, we do note a small casting flaw or small chip at the very end of the adjusting jaw, will not cause any use issues. We think it is a casting flaw since we had another one with the exact same flaw on it. The spring load is still plenty strong, and the lever action works great! The wrench measures 11" long, with .7" wide jaws. The handle is thick walled pipe material. Very little minor pitting is noted, no rust. The two pivot joints are in great shape, the jaw joint is very snug, the lever jaw a little looser. A nice, rare wrench! There was 3 patented asigned to this wrench, Sept. 22,1903, July 7,1905 & Oct. 3, 1905. It is also Schulz #681. A very hard to find, collectible lever action adjustable pipe wrench!