Ariel
You were faster than me. I also wanted to take opinions on this one. If the seller was somebody unknown I could say that it is a recent work made for the market of Istanbul.
Now I accept that it is 19th century and Indian made. Blade is good enough for the job. What is bothering me is that copper looks cast.
My guess is that someone in India started a factory of yataghans for export to Ottoman empire, but he didn’t had luck, so maybe only this copy survived
