Spanish 22cm OTF Black Vintage silver shield aluminum frame DA knife NOS

Spanish 22cm New Old Stock DA OTF Black Vintage silver shield aluminum frame knife made in Spain in the 1960s and 70s, most likely. It measures nearly 22cm (8.5 inches) open and 4 11/16 inches closed with aluminum frame. Spear point blade is 100% full with original finish and no markings on the knife that I can find. Black plastic scales are in great condition with a silver shield emblem insert. The knife works perfectly with blade opening fully when button is pushed forward and retracting in the body when the button is pulled back, though the switch (button/knob) is Very Stiff and takes a strong thumb to operate. A small box of these knives were found a couple of years ago that had never been sold retail. NOS nearly new condition.