PATENT ROSTFREI 21cm Italian Vintage OTF DA Bullnose black automatic knife

Vintage PATENT ROSTFREI 21cm Italian OTF (out the front) DA Bullnose black automatic knife made in Italy in the 1970s likely by Rosa Uliana Primo. This is a less common Bullnose OTF with wider/squarish top (front) bolsters and it measures 20.8cm (8 1/8 inches) open and 4 7/8 inches closed with chrome plated brass frame & bolsters. The flat spear point blade is 99% full or better with most of the original finish and the ricasso is stamped PATENT ROSTFREI. The scales (handles) are smooth black plastic and in excellent condition. The knife works just as it should with blade opening fully and locking when the switch (button/knob) is pushed forward and retracts fully when the knob is pulled backward. EX condition.