Here is my 1918 Trench knife for you to look at.
It was made in France and any comments most welcome to it's authenticity.
I do not have a scabbard and anyone who knows where I may find one please let me know.
With regards to lettering, the last photo is of another Au Lion and the lettering is similar. The Au Lion letters are bigger than the lF&C knives. My knife has been cleaned...not by me.