Seems awfully dark for a silver coin, but I think @mrw is correct and your coin is just heavily toned (which is perfectly fine by the way and doesn't mean you should polish it). Here is the numista link:
https://en.numista.com/catalogue/pieces8357.html
https://en.numista.com/catalogue/pieces8357.html
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz





















