Schrade Cut Co double Jigged bone tip bolsters automatic knife

Vintage Schrade Cut Co medium double, pattern number 7403T that measures 3 3/8" closed and 7 inches open with brass liners. It was made by the Schrade Cutlery Co of Walden, NY some between 1916 and 1946. Main blade stamped Schrade Cut Co Walden, NY and the small pen blade is marked with three patent dates, 1909, 10 & 16. Both blades mostly full and shiny with light scratches and some light peppering. Jigged bone scales (handles) are in excellent condition. Works well with pen blade tip just above the liners closed, both blades open fully and good lockup with a little wiggle on the large blade. Tiny kickback on small blade so just have to nudge it fully open sometimes. Really nice old knife! Both safeties work. EX+ condition.