I purchased this for 10 cents in a junk basket at a coin dealer. It was just a hunch that it was really old but it is so worn out and corroded I cannot tell what it is. Here is the obverse. (I didn't bother taking a picture of the other side because nothing can really be seen)
could be victoria, here is a simmelar bust on a jamacan farthing but for some reason it looks i think it might be french. will need to see the reverse