Please can anyone help with this? 24mm diameter, ~5g weight, similar to Silver 20 Fen coins from China. Non-magnetic. I think it is a ‘2’ something (looks similar to ‘sen’ on Japanese coins), but can't find it online.
Thanks for the pointer - this looks more likely? N#243344
The diameter of mine is off by around 2.5 - 3mm, and given the rarity of the above, I presume mine is a fake, as opposed to some ultra-rare undocumented pattern…