Silver or Billon Coins with Arabic(?) script

Hi, I acquired these because I thought they were attractive... but I have no idea what they are. All I was told was "Islamic" and "Medieval". Any ideas?

 

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going to need much better pics, showing each coin much larger.

 

I was wondering about that. I'll try to get straght on photos with my camera.

 

... at least on my computer, the images get blown up to a larger scale if I rest my mouse over a pic... does that help?

 

17th-18th century Turkey /Egypt.