Apparent Arabic coin identification [solved]

I hope someone can help here. I've attached a couple of photos of what I believe to be an Arabic coin that I can't identify. It is 35mm in diameter & a good 2mm thick, with a milled rim.
Any ideas anyone ?

Sudan 20 Piastres KM# 26.1

https://en.numista.com/catalogue/pieces50121.html

Thanks for that - I covered all the Middle East & the obvious North Africa countries , never thought of Sudan.
Best regards.
Rotund Ron