Timothy,
It seems that the RLM at first used un-altered bright finished S98/05 and then utilized blued ones with, or without, any other modifications. I have seen these bayonets Reichs Luft Ministerium property marked on the pommel, the blade, and the crossguard. One will also find Luftwaffe S98/05 that are property marked with the Luftwaffe eagle with L. and S. on either side of it. I don't recall ever seeing one still finished bright with this particular marking now that I think about it. Of course... never say never.
George Wheeler
