Original US M3 Trench Knife (Kinfolks Inc. – K.I.) with M8 Scabbard – WWII

The U.S. M3 Trench Knife was officially adopted by the United States military in the spring of 1943. It was designed as a close-quarters combat weapon primarily issued to troops not equipped with a bayonet, such as Airborne forces, Army Rangers, and armored vehicle crews. This piece represents the 1944 production phase, where manufacturer markings were relocated from the blade to the crossguard to prevent stress fractures in the steel.

Historical Context and Provenance Based in Little Valley, New York, Kinfolks Inc. produced approximately 119,702 M3 knives during the war. Their examples are highly prized by modern collectors for their robust build quality and distinct assembly methods. This particular artifact was acquired from a private European collection dedicated to preserving WWII American field gear and edged weapons.

Specific Details, Markings, and Material Condition

• Blade: The symmetrical spear-point blade retains its correct factory profile and unadulterated geometry. The surface shows remnants of the original dark parkerized finish, transitioning into a smooth, even grey patina indicative of honest field use. There is no evidence of harsh modern resharpening.

• Markings: The face of the crossguard is clearly stamped U.S. M3 K.I., confirming the manufacturer as Kinfolks Inc.

• Hilt: The stacked leather washer handle is exceptionally well-preserved. The leather remains tight, solid, and free from dry rot, with the six anti-slip grooves remaining sharply defined.

• Pommel: The heavy steel pommel is secured to the tang via the characteristic "sunburst" or "starburst" peening method. This factory-original peening is fully intact, ensuring a rock-solid hilt assembly with no mechanical play.

• Scabbard: The knife is paired with an early-production M8 scabbard (lacking the M1910 wire belt hook found on the later M8A1). The fiberglass and canvas composite body displays standard period wear but remains structurally sound.