The Vintage Penens Corp open end wrench from Chicago, USA is a unique collectible piece that measures 6 1/4 inches in length. Featuring sizes of 11/16 and 19/32 inches, this wrench is a rare find for mechanics and tool enthusiasts alike. The Penens Corp brand adds a touch of nostalgia to this classic American-made tool, making it a valuable addition to any collection of vintage tools and hardware.