Presto Cigar Jack Single Jigged Bone switchblade knife

Presto cigar jack switchblade knife 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. The 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 very nice knife with a nearly full blade that has scratches from use. The Jigged bone handles (scales) are in great condition with one tiny hairline crack along the edge. It works great with the blade tip seating deep when closed, good snap and good lockup. 100% refund including return shipping if you're not happy with this knife!