Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION & Steel Scabbard with Added Belt Clip Ordnance It was also used in

It was also used in gun turrets

Secretary of the Air Force

38 caliber in very nice condition and ready to display

so it's very possible that this rifle broke

and an overall length of 26 1/2 inches

Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION & Steel Scabbard with Added Belt Clip Ordnance It was also used inOriginal Item: Only One Available. The U. S. Model 1918 Mark I Trench Knife was the second major "Knuckle Knife" to be officially adopted and issued to the US military. It was developed for use in the horrific trench warfare that typified the stalemate on the Western Front during the latter part of World War One and saw use not only there, but during World War Two as well. The knife was manufactured in the United States by Henry Disston & Sons (H. D.