Welcome to the forum.
You have an interesting SA dagger there IMO. Most daggers are 'nameless', as they cannot be traced to a particular owner. Here you have a fullname and rank and KIA date, on what appears to be a Funeral dedication on the SA mans personal dagger. Although the engraving appears to be not done by a professional engraver, it none the less reeks of originality. The fact your father brought this home makes it a very special and certainly to be the Center Piece of your collection if you choose to expand it.
As you stated the dagger is a Eickhorn produced example. However this dagger was once a 'Rohm Honor Dagger' given to those who served early in the SA. These Rohm dedicated daggers had their dedications from the reverse of blade removed after Rohm's 'unmasking' and elimination in June 1934 by Hitler's edict.
Here's what the 'UN-reconstructed Rohm' dedication looks like. This example on a SS dagger, they were the same on SA's as Ernst Rohm was the leader at the time of both organizations.
The blade condition is the most important part in any edged weapon, yours is showing patina type rust from fingers all over the blade.
You would have to find a researcher who might find the man and perhaps have a photo on file (if your lucky).
Would like to hear the circumstances of how your father came upon this one. Nice piece of history there. I like it.
Serge
