1) "U.S./L.F.&C./1917" marked trench knife with scabbard. Blade bent. 2) "U.S./L.F.&C./1917" marked trench knife. 3) Au Lion Model 1918 U.S. trench knife with scabbard. 4) L.F.&C. Model 1918 trench knife with scabbard. Damaged scabbard. Fair overall with oxidation and wear. The two 1917 knives are 9" blade and 14" OAL, the 1918s are 6 1/2" blade and 11 1/4" OAL.