Goins says DEPOSE marked on the blade means "registered". This one looks like it says DEPOSE'E?
As for the German, on the first one, Munchner Kindl translates to Munich Child. The second one has abbreviations for some of the the words. I'm thinking it says something like "The watch on the Rhine is faithful." It may be a German idiom, or related to some German historical or religious event.
Best I can do with my rusty Deutsch.