PRESTO #610ST Cigar Jack Jigged bone single blade automatic knife

Vintage Presto #610ST cigar jack switchblade made by the Geo Schrade Knife Co of Bridgeport, CT sometime between 1940 and 1956. The knife measures 3 3/8" closed and 6 inches open and it has brass liners and nickel silver button, safety & pins. The clip blade is stamped PRESTO over PAT JAN 30-40 over MADE IN USA and the rear is stamped G SCHRADE over KNIFE CO, over B'PORT, CT USA. This is a nice knife with a nearly full blade about 98% or better with light scratches, patina and scattered light pitting. The jigged bone handles (scales) are in good condition with one small chip along the front scale at the end of a hairline crack that's been glued and is stable and a small chip by the button. The knife works great with the blade tip seating deep when closed, good snap and very good lockup with about 1/8" up and down at the tip. 100% refund including return shipping if you're not happy with this knife! Safety works. VG+ condition.