Amusing quote from the Swedish National Bank's website...

MrEureka

"The Riksbank does not redeem invalid coins. Coins that are no longer legal tender cannot be redeemed by the banks or at the Riksbank. The coins can be regarded as scrap metal and can therefore be left for metal recycling."

Andres

All european countries destroyed their coins in favour of the eurocoins ,
after the transition the coins were sold to scrapdealers and as sets to collectors:

Dutch set with 5 - 2 1/2 - 1 - 1/4 - 1/10 - 1/20 guilder coins , aka the Wokkel set