B Rostfrei 28cm Italian Stiletto swivel bolster Blue acrylic automatic knife

Vintage B Rostfrei 28cm Italian Stiletto swivel bolster Blue acrylic automatic knife made in the 1980s or 90s in Italy by the Beltrame family. This knife measures 27.4cm  (10.8 inches) open and 5 15/16 inches closed with brass liners & pins and steel bolsters, button and safety cap. The bayonet style blade is 99% or better with original finish and some light scratches and the ricasso (tang) is marked B Rostfrei. The blue acrylic pearlex scales are very attractive and in excellent condition. The knife works well with blade tip even with liners closed, good snap and excellent lockup. Does not rattle if shaken with blade open. Safety works. EX condition.