Antique Richard-Wilcox Shark Adjustable Wrench #265, as pictured.
Catalog entry:
"A quick action adjustable general purpose alligator wrench. Made of best quality drop forgings throughout. Makes a splendid pipe wrench and is equally good for bolts or nuts, either square or hexagon. With this wrench corners and angles are easily accessible. Good for any work—anywhere—any time. The “Shark” is an extra strong wrench with a “bull dog grip” that never slips or lets go. Built for service—built to last".
Measures 8" long.
Nice condition overall. See the close-up photos to understand the condition.