I took the photo of the Paul Muller's Turkish Damascus Luft Sword on the cover of TJ's Vol. III, 2nd Edition. As I remember his had no scabbard. I'm not sure if there was anything written on the blade. We did not take it apart. I have never seen another full Damascus Luft sword until yours. There are several construction differences between them besides the blades. I have no idea of whether one is original, neither or both. There are several highly respected Damascus collectors in the hobby who could help identify the maker.