This superb knobbed dagger cane conceals a deadly surprise. Unlike most sword canes, the blade is attached not to the handle, but to the shaft. This “quick release” design makes this cane even more lethal. First carried by dukes, who were always concerned about threats upon their lives, sword and dagger canes are truly dangerous weapons, combining strength and flexibility with the element of surprise. Exceptional in form, this cane is a rarity in a highly diverse field.

Reference:
Walking Sticks, 1996, Ulrich Klever