Anyone recognize this?
 

A recent Ebay auction (I did not bid). This is an unusual piece. It was listed as a dha but many features don't line up. I am assuming the German portepee tassel is not original to the sword.

Tang appears to pass through and be peened over a pommel plate/end cap. Dha-type swords are uncommon with peened full-tang construction.

Scabbard is form fit leather, I do not recall another dha with a leather scabbard. It is heavily tooled with repeating geometric motifs, including eye/lozenge forms and punched border decoration. Tje design appears tribal to me. A raised central strip running down one face of the scabbard with multiple small repeated tabs/loops/fixtures spaced along it. These look functional rather than decorative.

Provenance from seller: obtained from the grandchildren of Wigand Wüster (German owner), could be a Stalingrad veteran and author of a memoir of his POW experience.

That looks like from old Formosa with a bit of European sword knot added.