I recently inherited (From what I've found SO far) A german heer dagger, I was told my great great uncle killed the man that had this knife in WW2 and there even seems to be a blood stain on the sheath (Looks like blood but I'm not 100% sure if it is or not). I just would like some general info on this certain dagger to see if its genuine or made some sort of reproduction! Thank you guys in advance for who ever may be able to share some info. Here is some photos: https://www.dropbox.com/sh/d547cmfpg050vt2/AAAtLXzt659hvJzBf7HRezOya?dl=0