Help identifying an old coin - origin and value

Dear all,

I found this old coin and I’m struggling to identify its origin and value. 
Could you kindly help me with any information you might have? 
Thank you in advance!

Hello and welcome to the site.

Can you give the measurements? Diameter at least?

That said, I can already say that's from Ptolemaic Egypt, but still can't say which one because I don't know the size of it.

Thank you for helping.
The diameter is almost 20 mm.
I hope this helps you narrow down which Ptolemaic ruler it belongs to. 
Many thanks

Thanks.

In my previous search with “two eagles” at searchbar, a half dozen coins appeared. Going back to it, there's only one with a compatible diameter: N#62177 

Excellent..
Thank you so much for the detailed identification! 
The N#62177 reference is exactly what I was looking for. 
I really appreciate your help in narrowing it down to Ptolemy VI