Hope someone can help with this.
14mm diameter
very thin <0.5mm
very light <1g
I have no idea if it's a coin, token, or simply come off a bit of jewellery. Apologies for the quality of the photos. As you can see, it's slightly concave on the rim, is clipped and holed, which is why I'm thinking it might be from jewellery or clothing.


Thanks all.