SCHRADE CUT CO 7403 Medium double Pick Bone early switchblade knife

Vintage Early Schrade Cut Co medium double, pattern number 7403 that was made by the Schrade Cutlery Co of Walden, NY some between 1907 and 1910. The knife measures 3 3/8" closed and 6 3/4" open with brass liners and nickel silver buttons & safeties. Both blades have heavy patina, scratches and some spotting and are mostly full with small blade 98% and the large 92%. The main blade is stamped Schrade Cut Co Walden, NY and the small pen blade is marked US PATS FEB 13, 06, FEB 26, 07. Picked bone scales (handles) are in very good condition. Works well with both blade tips below the liners closed, both blades open strong and very good lockup. Does not rattle if shaken with blades open. Both safeties work. VG+ condition.