This is a nice clean 10" long angled jaws adjustable wrench marked "BOOS TOOL CO. CHROME MOLYBDENUM PATENTED" on the frame. It's in good+ condition overall, a little wear, no rust, some areas surface pitting on the end of the solid jaw mostly, about 80% nickel plating intact. The jaws close to a minimum of 3/16", opens to about 1.25" wide between jaws, one jaw surface is serrated, the other is smooth. The serrated is somewhat worn, but was designed to grip pipe and other round stock as well.  Adjusts smoothly, average wear. A rather hard to find quality made medium/heavy duty wrench in this 10" size!