PATENT ROSTFREI 21cm Italian Trapdoor 1960s vintage automatic knife

PATENT ROSTFREI Italian Trapdoor OTF vintage 1960s automatic knife measures 21.1cm (8.3 inches) open and 4 7/8 inches closed with nickel silver plated brass frame, bolsters, button and safety and steel trapdoor. The flat grind swedge blade is 99% full with most of the original finish intact with light scratches and is stamped PATENT ROSTFREI on the ricasso. The buffalo horn scales with red dot safety are in very good condition with mostly black, white and cream colors and have some handling marks. The knife works great. To open move trapdoor to the side and hold parallel with the ground, or pointed down and press button. Opens fully and locks when button is pressed. To close press button and gently push blade down until tip is close to the top bolster, then use the hinged trapdoor to push it the rest of the way closed and cock the knife so it's ready to open again. Safety works. EX condition.