Seam on the scabbard looks Turkish. the decorations also have a Turkish look to me but look like an earlier primitive style. Horned sea horse one side. writing looksmore latinish. Better pics when it arrives.
Definitely doesn't look Russian to me either.
NE Balkan a possibility. Needs a bit of TLC, maybe it'll talk to me when it gets here. might have Arya Stark's Dire wolf stamped on it.