I believe the etch pattern on your degen is a type used only on Dachau made blades. Johnson has some with the same etch with different makers. He discribes them as most likely post war. Your hilt fittings do not look like they were made at Dachau. Are they stainless steel? The D guard seems to have a built in step fitting and the quillon a drilled hole. These are not seen on Dachau produced degens. On page 484 of the Wittmann SS book there is a pommel on a Eickhorn SS-Police degen that has a enameled runes button a lot like yours.