The F Herder and Son Solingen Germany Hook Bill Knife is a vintage pocketknife with a single hawkbill blade made of stainless steel. The blade range is between 2.76 to 4 inches, and the knife has a slipjoint lock type. The handle is made of wood, and the knife is opened manually. The knife is an original product made in Germany has like new snap for the blade very nice vintage knife thanks for looking comes as you see