ID for coin

Hello All

I found what I believe is a love token, an almost smooth silver coin. 1.1g  18mm in size. Could be hammered or very worn and thin milled!?

The only letters are a G. FR . Visible. Extremely difficult to ID, but could anyone hazard a guess!? I guess the G is end of ANG. FR follows?

  Many thanks all

Joe

More pics

This is one possibilitythat fits the size and weight, but I suspect there are other options:  N#166895

Many thanks! I just checked the letter sizes, and measured again..it is just under 19mm, it seems to sit better on a 3 pence in the catalogue..the only letters I have to go on seem to correspond?, as I guess it is so worn it will have lost weight in silver   - it is only 1.1g as opposed to 1.3..I wish I had more to go on but i think the ANG. FR becomes BRI. FR after Elizabeth?