CASE TESTED XX 5171L Lever automatic knife w Stag handles

Vintage CASE TESTED XX 5171L Lever automatic knife with Stag handles made in Bradford, PA between 1920 and 1940s. The knife measures 5 3/8 inches closed and 9 3/8 inches open with nickel silver liners, bolsters & lever. The Saber Grind swedge blade is nearly full, 98%, or better and very shiny with a few light scratches and the tang is stamped CASE TESTED XX. The genuine stag scales are in excellent condition with no cracks. The bottom front bolster was originally stamped CASE'S TESTED XX, but has been smoothed over the years so only CASE and the top of the rest of the stamp are still visible. The knife works great with blade tip below the liners closed, good quick snap and excellent lockup open. Does NOT rattle if shaken with the blade open as many of these that do. EX+ condition.