Most common amongst all early SA daggers - small logo Eickhorn, probably ground Röhm. Scabbard looks repainted. Good original early hanger matches the dagger - that's nice. The crossguards should be marked internally A-R or H-E. The gap beteween grip and upper crossguard doesn't look nice, but maybe it's just the wood shrinkage (I hope). If the price is right you can go for it.
