Springer 20cm Japanese Shell Puller Lever Bone & Brass vintage automatic knife

Vintage Springer 20cm Japanese Shell Puller Lever Bone & Brass automatic knife made in Japan in 1950s or 60s similar in style to the German made Johnny Cade knife from the Outsiders movie. The knife measures 19.7cm (7.75 inches) open and 4 3/8 inches closed with steel liners and brass bolsters, lever & pins. The clip blade appears to be 98% full, or better and shiny with light scratches and no markings that I can see on the blade. The dyed jigged bone handles (scales) are in very good condition and the bottom bolster is stamped SPRINGER. The shell pullers do not line up properly and are not functional, just decorative. The knife works well with blade tip deep & centered closed, strong snap and very good lockup with about 1/16" down movement at the tip that springs back when you let go. No rattle if shaken with blade open. VG+ condition.