Original U.S. WWI Model 1918 Mark I Trench Knife by L. F. & C. with Matching Steel Scabbard MG 34 Barrel Jacket Assembly the design of the trigger

the design of the trigger spring (flat spring

and saw service in WWI

which indicates the approximate manufacture date of April 1945

This resulted in the guns averaging 1

of which the single shot rifle was only the first

Original U.S. WWI Model 1918 Mark I Trench Knife by L. F. & C. with Matching Steel Scabbard MG 34 Barrel Jacket Assembly the design of the triggerOriginal 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.