Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Scabbard in Canvas Sheath U.S. Ammo Marine Corps issued helmet

Marine Corps issued helmet

engraved with Masonic symbols together with California's State symbol of a large Bear

With brass mounted furniture

Springmine or Splittermine in German)

in a B-17-Eaircraft

Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Scabbard in Canvas Sheath U.S. Ammo Marine Corps issued helmetOriginal 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.