Vintage/mint 1960's  Italian automatic Switchblade Stiletto knife made in maniago Italy , 18cm-- 7 inches in open position , 1 piece spring/backspring (spring and backspring are 1 piece) ,backspring is shiny new ,stainless steel swedge grind blade with Rostfrei stamp , Nickel/Silver Bolsters button and safety cap , steel lined swivel bolster, full profile brass liners (liners cover guards at top), solid brass pins secure the genuine brazilian horn handles , it does have few lite scratches here an there (see pics)  , good  kick solid lockup , everything works as intended, due to construction and materials used i think this is from 1963-1970,   it is in "as found" condition never polished or touched by anyone, bought direct from Italy around 20 years ago it is NOS .  Straight and Tight all around , this is the rarer version with nickel/silver bolsters button and safety and the hard to find 7 inch size.