> *They never go out of circulation.* It has happened in other places, e.g. Swed... | Hacker News

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klapinat0r on March 22, 2014 | parent | context | favorite | on: How does the authentication in the new UK £1 coin ...

> They never go out of circulation.

It has happened in other places, e.g. Sweden, Norway and ("recently") Denmark with exactly 3 years grace period: https://www.nationalbanken.dk/DNUK/NotesAndCoins.nsf/side/25...

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