1) L.F. & Co. M 1917 trench knife. 14" OAL. 9" triangular blade. 2) A.C.C. M1917 trench knife. With leather scabbard. 14" OAL. 9" triangular blade. 3) AU Lion M1918 trench knife. With metal scabbard. 11 1/2" OAL. 6 3/4" double edge blade. All are good with some spotting and pitting on the blades of the M1917s and a bright blade on the M1918 and patina on the knuckle guards of all three.