INOX PATENT 35958 18cm Italian Stiletto Fulcrum release vintage automatic knife

Vintage RARE INOX PATENT 35958 18cm Italian Stiletto Fulcrum release swedge blade automatic knife made in Italy in the 1960s. It measures 18.1cm (7 1/8 inches) open and 4 inches closed with D stamped brass liners and nickel silver bolsters, button and safety cap. The swedge blade is 100% full with original finish with lots of light scratches and is stamped INOX in a pill (oval circle) on the ricasso and PATENT 35958 on the reverse. The genuine horn scales are mostly black with some cream streaking and in excellent condition with one tiny bug bite on the back scale. The knife works well with the blade tip deep and centered closed, nice snap and excellent lockup open with just a hint of movement at the tip open. These are  Rare and hard to find in general. Safety works. VG condition.