https://en.numista.com/catalogue/set.php?id=361
All coins varieties are minted in 1982, years says 1981-1982
I've had the same issue but only when I duplicate another set. For some reason it retains a deleted coin but is invisible in the set page.
I only was able to get rid of it by deleting every coin and starting over.
Probably same issue with data mismatch: https://en.numista.com/forum/topic163837.html @Xavier / @dzmitry.huletski
Hello, the issue is fixed.
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