So I sold a coin from Malawi, it's likely Royal Mint in the UK. But I need proof if I'm not going to say it's from Malawi (that's 15% tariff but UK is only 10% tariff).
There's nothing on Numista (the coin collecting site), so I did a google search. That's been helpful before and if the source was credible I printed it to go in the package in case it's inspected (so I have my proof of where it was made if it's not the country on the coin). This is helpful for Royal Canadian Mint made coins from countries with higher tariffs (when the RCM coin gives me zero tariffs under CUSMA).
So this is my result... the source... my own eBay listing (complete with photo):

Due to not finding proof that it's Royal Mint in the UK, I think I'll go with Malawi since that's what's printed on the coin (and no source to say otherwise).
C.