COLONIAL SHUR-SNAP Fatjack Black & Gray swirl vintage 1950s switchblade knife

Vintage COLONIAL SHUR-SNAP Fatjack Black & Gray swirl vintage 1950s switchblade knife. Measures 4 1/8 inches closed and 7 1/8 inches open with brass liners, steel button and lanyard ring and nickel silver safety. The long clip blade is nearly full with much of the original factory finish with lots of sharpening scratches and is stamped SHUR-SNAP COLONIAL PROV USA on the tang. The Black & Gray synthetic scales are in nice condition with a little shrinkage. The knife works well with blade tip deep and centered, good snap and good lockup with about 1/16" up and down at the tip. Safety works. EX- condition.