Persian KILIJ

[Tea]

Hi all,

I just concluded a deal on what I suppose would be a Persian Kilij from zand empire?

I am happy to hear your thoughts/ any information that might be of use.
Also I noticed that the handle is quite squared off is this common?
any ideas about the disc on top of the handle?
anybody who might be able to translate the inscription?

Thanks in advance for your precious insights.

Also any Ideas where to find someone who could remove the rust and maybe do some other small restorations without damaging any of the gold koftgari? For this sabre I don't feel comfortable doing it myself. (if possible somewhere around Belgium)