this same dagger is in discussion on another forum also,due to the kiel tower and the maker mark.
i have just contacted clemen and jung who state that the maker mark within an oval was never used during the period .....so that sort of blows the trademark.despite all the large dealers having examples,and also examples in reference works as late war ,which i must admit i thought for a time was correct but not now.
as for the monument,theres some nice daggers with this etch,some with blue on guilt panels,but im affraid all ive seen shown are wrong 80`s blades.

the etches with the monument,battleships,planes and uboats were for the navy swords,and only a couple of makers offered this. not for the daggers except the U9`s