INOX 4 PATENT 27cm Vintage Italian Stiletto BOBC Black automatic knife

Vintage INOX 4 27cm Italian Stiletto BOBC Black automatic knife most likely made in the 1970s in Italy. It measures 26.9cm (10 5/8 inches)open with brass liners and nickel silver bolsters, button and safety cap. The flat grind spear point blade is 99% full, or better with original factory finish intact with light scratches and tiny piece broken off the very tip of the blade. The ricasso (tang) is marked INOX over what looks like a 4, but not sure. The buffalo horn scales are black and in good condition with lots of light scratches and small dings from handling/storage over the years. The knife works great with the blade tip deep and centered in the well closed, strong snap and good lockup. As with most of these old b.o.b.c knives the tip can be moved down a bit in the open position, but springs back when you let it go. Does NOT rattle if shaken with the blade open. Safety works. VG+ condition.