UK: flora on modern circulation coins

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2016 UK: The Last Round Pound Round £1 Coin - Mintage: TBC

But that was collector-only with heraldic beasts, not flora, wasn't it?

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UK, half crown, 1820.

Image © Heritage Auctions.

These floral designs do go further back into the 19th century, of course.

But they seem to have been absent from the first quarter of the 20th century.