Newbie to world coins, need help to ID silver coin, 16th-17th century Ottoman? Indian?

Parimal on numista just messaged me back, and he agrees with Muzyck, thinks is Isfahan mint. He also sent me a link to another coin forum that he is pretty certain can help even more with pinpointing your coin down. Will message back later today, when I get back to my laptop or the iPad.

 

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If you look at the bottom of the coin side in the left picture;
At the right is ضرب "Zarb" meaning "struck at". The mint name is to the left of this.
Now compare: Isphahan = اصفهان, Mashhad = مشهد.
Which fits better ?