Terrific example by A C Co which is far scarcer then LF&C. This M1917 trench knife (Also known as The Knuckle Duster) has a nice, smooth, unsharpened triangular blade. The knuckle guard is clean as a whistle and backmarked A.C.Co. USA 1917. The grip shows a nice, healthy wood mostly free of damage except for 5 notches that look intentionally placed. The hard to find scabbard is in similar solid condition with all rivets in place. The scabbard metal fittings are clean and smooth with both pieces backmarked M.C. The leather is still soft and pliant and the JEWELL 1918 imprint is still quite clear. The green surface coloring is in solid shape with some scuffing as would be expected. the worst is shown in the last photo. There is a bit of wobble between the leather and the scabbard throat but this is also pretty much standard. For obvious reasons these knives were popular with raiding parties and were kept close when combat was imminent and are classics due to their ferocious appearance. All in all a top notch example.