Help identifying silver coin

I'm not too much into foreign coins but this stumbled into my hands and I have no idea where to even start on figuring out what it is. Any info will be greatly appreciated. Thank you.

 

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My quick assessment is it's a dirham from the Abbasid Caliphate. These normally have the date and mint listed in the inscription, I may try later to figure out your specimen (it's pretty worn so no guarantees) if I have time.

 

Well that little bit of information gives me a direction. Thank you very much

 

Here is a similar coin:
https://www.worthpoint.com/worthopedia/771ad-islamic-silver-coin-al-mansur-1911765484