Shashka??? Or what ????

[Helleri]

I lean towards Shashqa. Seems to fit the general form.
[Edit: Scrolled back and saw that where this was mentioned, it wasn't regarding a different specimen but that same sword up for auction at a different time and place...So the following digression is moot.]
I know it was mentioned that something typical to see would be the double fuller being enclosed (box like). I am not sure that it isn't. We can't fully see the area that would let us know about that as it is covered by the leather. but if you look closely. It looks to me at least like grooves of the fullers could connect there.