Help with identification of ancient coin

I need help with identifying this coin, person I bought it from doesn't know anything about it, it appears to be made of silver, 14 mm in size, should I clean it? Because it's very hard to recognise any shape on it

What is the weight of the coin?

Also you should try cleaning it (using olive oil or other safe methods)

Meet_Dand_1

What is the weight of the coin?

Also you should try cleaning it (using olive oil or other safe methods)

Idk, I don't have scale to measure at the moment