1) U.S. Kinfolks M3 knife, 6 3/8" blade with early style side marking, factory turned thumb rest, ribbed washer grip and repainted USMC sheath. 2) U.S. 1918 trench knife, 6 5/8" blade with solid brass hilt and stamped metal sheath. 3) L.F. &C. Trench knife, as 2, with a 6 3/4" blade. 4) U.S. L.F.&C. 1917 trench knife, 9" spike, pyramid guard projections, grooved grip and leather and metal sheath. All are fine or better.