Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Steel Scabbard MG 34 Display Guns & Part Sets The lining is ink stamped

The lining is ink stamped with RBNr

In Treue Fest

executive officer of the 2nd Battalion 8th Marines' Shore Party

The back apron is marked with the German last name Langner in yellow paint

We assumed this is a Zenith order number and then there is a second ink stamped number that reads:

Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Steel Scabbard MG 34 Display Guns & Part Sets The lining is ink stampedOriginal 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.