BONSA SOLINGEN D.B.G.M ROSTFREI 23cm German OTF Automatic Trapdoor knife all metal

Vintage BONSA SOLINGEN DBGM ROSTFREI 23cm German Trapdoor OTF automatic knife most likely made in the 1960s or 70s. It measures 23.4cm (9 3/16 inches) open with non magnetic steel frame with steel button and safety. The flat grind spearpoint blade is 98% full or better with much of the original factory finish and some light scratches and you can still see most of the original etch with says BONSA SOLINGEN in a circle with ROSTFREI inside the circle. The frame is in great condition with little, or no wear to the pattern. The knife works well with the blade tip inside the knife when closed, opens fully and locks up well. Blade flies out to full open when the button is pressed and falls back when button is pressed to close. You reset the blade for firing with the trapdoor by pushing sideways on the side of the lever that pushes down the blade. Must push on the side of the lever, not on the door itself. Safety works. EX condition.