![M1918 Mark 1 Trench Knife. Knife has the original metal sheathing. Belonged to my grandpa. I am having a really hard time finding information about this knife and it's value, could anyone M1918 Mark 1 Trench Knife. Knife has the original metal sheathing. Belonged to my grandpa. I am having a really hard time finding information about this knife and it's value, could anyone](https://i.redd.it/6oo9lcgc0tu61.jpg)
M1918 Mark 1 Trench Knife. Knife has the original metal sheathing. Belonged to my grandpa. I am having a really hard time finding information about this knife and it's value, could anyone
![WW1 Imperial German Trench Knife with 145mm long blade, no makers mark. Overall length 257mm. Complete with scabbard, missing leather hanger. WW1 Imperial German Trench Knife with 145mm long blade, no makers mark. Overall length 257mm. Complete with scabbard, missing leather hanger.](https://hansonslive.hansonsauctioneers.co.uk/images/lot/1133/113331_4.jpg?1616241124)
WW1 Imperial German Trench Knife with 145mm long blade, no makers mark. Overall length 257mm. Complete with scabbard, missing leather hanger.
![Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Match – International Military Antiques Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Match – International Military Antiques](https://cdn.shopify.com/s/files/1/1524/1342/products/ON5239__03.jpg?v=1598739912)
Original U.S. WWI Model 1918 Mark I Trench Knife by AU LION with Match – International Military Antiques
![Original U.S. WWII Named U.S.M.C. Knuckle Knife made from M1918 Trench – International Military Antiques Original U.S. WWII Named U.S.M.C. Knuckle Knife made from M1918 Trench – International Military Antiques](http://cdn.shopify.com/s/files/1/1524/1342/products/ONSV21NSH86__02_grande.jpg?v=1639105771)