Thailand 1971 non circulating 50 baht commemorative, 20th anniversary fellowship of Buddhists .900 silver, 200,000 struck
And back to the UK. A trial piece of the 1689 copper farthing (Peck 564) struck on a Charles II halfpenny. The farthing itself as a coin is extremely rare with only 3 or 4 known. This way you get two for the price of one. This is the piece referred to on p.155 footnote 2 of Peck.
I think we had commo before. I am an American living in Thailand, and I seem to recall you are a Brit living in Spain.
Another opportunity for a micro-state. I was going to go San Marino but I think I'll hit Vatican City instead with this 1953 five-lire (KM 51).
I wanted to post a principality but it doesn't have line of sight from the previous post, as per the rules. So, Spain first, Barcelona commemorative, and then Andorra a tiny country in the mountains between Spain and France