King
In this case, because Andorra is a Principality and it’s official currency was that of its two land neighbours France and / or Spain - so the French Franc or the Spanish Peseta. I really can’t remember or be bothered to find out which one or if both were excepted, and I can’t remember. But the point is the Andorra minted coins were just minted for collectors and weren’t circulating. Now they use the Euro even thought they are not in the Eurozone.
So to sum up; collector coins are just minted for collectors and are not circulating or legal currency.
Hello, as you rightly say, Andorra used the French Franc and, I believe to a greater extent, the Spanish Peseta. Both were used equally in Andorra before the introduction of the Euro in these two countries.
At the same time, the Andorran government issued its own non-circulating currency (collector coins in Numista), the Andorran Diner, divided into 100 Cèntims, for collectors' purposes only. Diner (not to be confused with Dinar) literally means money written in Catalan (its official language), and cèntims are also cents in that language.
When the Euro arrived, Andorra reached an agreement (like other small European states—the Vatican City, San Marino, and Monaco), despite not being in the Eurozone, to use and issue its own Euro coins.
Coin referee for: Andorra, Equatorial Guinea, Marshall Islands, Moldova, Liberia and Spain
Banknote referee for: Andorra, Equatorial Guinea and Spain