Islamic Silver. True or Fake?

Hello my friends, would you say that this Islamic coin is fake or real? Can assign an ID
2.8g 27mm

Looks like https://en.numista.com/catalogue/pieces192027.html. Instantly recognized it, I have 2 of it.

thank you my friend. I was about to acquire this piece, but for the brilliance I was afraid of being fake

Mine are this brilliant as yours and also have the same partial green corrosion. Bought them from a physical seller at a coin fair in São Paulo.

By the way, your coin is identical to the one posted here - https://en.numista.com/forum/topic98502.html. Same seller maybe?
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Hold a sec, it's the same coin! The other guy also wanted an ID before buying, or he didn't buy or this one is mostruary from the seller.

At the end of that thread I was able to give him an exact ID, check there.

cleaning a coin like that removes all of its history.

Really. It may even be true, but that glow discouraged me.