Hermann
No doubt about it Russian Navy blade. But why go through such an expense to have it custom mounted? And with German fittings? Family heirloom? Russian immigrant with family history of naval service? Definitely the classic deluxe WKC fittings. Portepee may not be original to the piece or was untied at one time. Just when I thought I had seen most variations. Thanks for showing. I need to ponder this one some more.
Rick

Wanted: German Naval Edged Weapons and Related Accouterments