PRESTO Cigar Jack All Metal single vintage American switchblade knife

Vintage Presto cigar jack switchblade made by the Geo Schrade Knife Co of Bridgeport, CT sometime between 1940 and 1956 and is not an easy knife to find. The knife measures 3 3/8" closed and 5 7/8 inches open and it has brass liners and steel scales, button and safety. The clip blade is stamped PRESTO over PAT JAN 30-40 over MADE IN USA and the rear is stamped G SCHRADE in an arch over B'PORT, CT. All metal painted (imitation stag) scales (handles) are in good condition with a lot of the paint worn off. It works great with the blade tip below liners when closed, good snap and tight lockup. This really is a hard example to find. Took me 20 years to find one. Safety works. EX condition.