Totally... parts dagger with post war added dedication, that's what it is.
Sorry, but I would disagree slightly.
This dagger was offered on a German auction site a few days ago and I have requestd from the seller additional photos.
According to all available photos the dagger itself seems to be ok, only the lacquer of the grip has been removed. I have a very similar example in my collection. I would therefore say that the dagger itself is an original Aesculap SA, not a parts dagger.
The Röhm dedication is clearly faked. No doubt about that. Wrong makers mark and missing details / wrong details in the etching compared to an original dedication.