6.75 - inch Autocar slip-joint pliers with early Utica knurling (inverted V combined with opposite straight edge) on the handles; 3-diamond Utica stamp on backside. One handle has been formed into a small screwdriver. Some plating remains on this tool.
It's likely these pliers came from an early Autocar automobile made in nearby (to here) Ardmore, PA. Informed opinions welcomed!