Ackermannchen ROSTFREI 21cm Italian Rectangle button lockback automatic knife

Vintage Ackermannchen ROSTFREI 21cm Italian Rectangle button lockback automatic knife made in Italy post 1960. The knife measures 20.8cm (8 3/16 inches) open and 4.5 inches closed with brass liners and nickel silver button and safety. The flat swedge blade is 100% full with original finish with some very light scratches and the ricasso is stamped Ackermannchen in an arch over ROSTFREI and the reverse is stamped PATENT MADE IN ITALY. The black synthetic wrap around scales (handles) are in very good condition with light handling marks/scuffs and very slight shrinkage. The knife works well with blade tip well below liners closed, good snap and excellent lockup with only a hint of movement at the tip. Does not rattle if shaken with blade open. Safety works. EX condition.