P.S. Unless I'm wrong, it seems to include the four nations too...
That's fairly standard for British coinage these days.
With the four shields, again as is traditional, England is represented twice, and Scotland and (Northern) Ireland once. Wales doesn't get a shield, because it's "just a principality, not a Kingdom" and nominally part of the Kingdom of England. This also follows the patterning and arrangement of the four quarters of the coat of arms of the United Kingdom, But all four nations of the UK are represented in the floral emblems: English rose at the top, Scottish thistle on the left, Irish shamrock on the right, and Welsh leek at the bottom.
Has any country, other than the UK, announced C111 coins for circulation yet?
Not that I'm aware of. I think the speed at which The Royal Mint
got an official portrait approved and ready to use has caught everybody off guard, who expected to have to wait for a few more months yet. The RAM's FAQ page hasn't been updated since 13/9/22. There's nothing on the RCM
website at all that mentions Charles III that I can find. And none of the other Commonwealth Realms have their own mint, so I would expect those countries to be even slower on the uptake.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis