1561 Elizabeth 1 Coin

[Guest John]

Hi,

I have a coin which is dated 1561 with Regina Elizabeth on the front and a coat of arms on the back with some more writing on it. I know nothing about coins but could anyone point me in the right direction to get this valued please.

[Peter]

If you registered and then posted a picture it would help. (condition and appearance is upmost)

What is the dia ? (to establish the denomination).