It is a known sword, which a very long time trying to sell on e-Bay. Because of this, I had the opportunity to see the sword carefully.
1) I see a new sloppy rivets (1) and parts bolster (2) (photo 1).
2) The shape of the blade and groove on the blade It does not look like shashkas from Bukhara (or Khiva, or Kokand). (Photo 2) But I'll be glad if someone will show me an example of a similar blade from Bukhara.
3) But this blade is similar to the blades of the Afghan shashkas of the late 19th century. (Photo 3)
4) Now a little about decorated with "incised silver". Unfortunately I can only see "koftgari" (3) (Photo 4), this is usually the modern masters "improve" the old blades .... At real shashkas of Bukhara is it looks differently (Photos 5)
Lately, me offer many items from Kabul (Afghanistan). Among other items I was offered "Bukhara shashka". But unfortunately it was modern .... So I politely refused to do an item. The blade was no inscriptions in gold and silver

(Photos 6)
So I would not hurry to congratulate ... I will be very happy if I am wrong.....