PATENT 18cm Italian Humpback Dark horn automatic knife

Vintage Italian 18cm Humpback stiletto switchblade knife most likely made in the 1960s. These are referred to as Humpbacks due to the hump/bump on the backspring that you press to close the blade. The knife measures 18cm (7 1/8 inches) open with D stamped brass liners and German silver bolsters and safety cap with steel button. The blade is 99% full with most of the factory finish and is marked PATENT on the rear of the tang with some light scratches from use. The buffalo horn scales are black and in very good condition. The knife works great with the blade tip seating deep and centered, nice smooth snap and tight lockup! It is coil spring fired with no kickback. Safety works. Really beautiful vintage Italian humpback switchblade in EX condition.