This one has been discussed before:
http://daggers.infopop.cc/eve/forums/a/tpc/f/728099473/m/3940053693
Looks like it could be the same dagger. RZM number 7/67 is Hammesfahr, which has not yet been identified as a legitimate maker of late model EM SS daggers. I really do not like the rounded crossguards, which makes me suspect the entire piece.