CHALLENGE CUT CO Hunter Black wormgroove automatic knife FLY LOCK

Antique CHALLENGE CUT CO FLYLOCK Hunter Black Switchblade knife made in Bridgeport, CT between 1917 and 1924. The knife measures 5 inches closed and 8 9/16 inches open and has steel (iron) liners and nickel silver bolsters and button. The clip blade is 95% full or better and mostly shiny with light scratches and light peppering, overall a nice blade. The tang is stamped CHALLENGE CUT CO B'PORT CONN and the reverse is stamped FLY-LOCK in an arch over US PAT MAR 5, 1918. The black wormgroove scales are most likely bakelite and in excellent condition. Knife works well with blade tip very deep and centered in the well, good snap and tight lockup. Does not rattle if shaken with the blade open even though most of these 100+ year old switchblades do. EX- condition.