L. F. & C. U. S. Model 1917-1918 Trench Knife
Maker: L. F. & C.
This Landers,Frary & Clark US Model 1917-18 Trench Knife is the standard version with the 6 knob guard. It is paired with the optional leather scabbard as shown in Cole III p. 24. Reference for the knife is Cole III p. 22-3, No. 4, Type I.
