esperanto coins?seriously???

http://www.ngccoin.com/price-guide/world/esperanto-spesmilo-x-1-1912-cuid-135349-duid-338306
http://www.ngccoin.com/price-guide/world/esperanto-25-steloj-x-7-1965-cuid-135355-duid-338312
             
so what is this? a currency of a language or a micronation currency?

Well, its silver, and Esperanto... the perfect language

I think they're tokens.  They commemorate the invention of a language --  a well intentioned project a century ago, set in a region where many languages were spoken --  from Bialystock to Grodno  ....   Actually my grandparents were from there.   I think they are interesting tokens.

https://en.numista.com/catalogue/pieces72587.html     Thank you for posting on this Kolikko99.  I ran searches this morning on the Numista catalogue for Zamenhof and Esperanto, and found three  coins, non-circulating commemoratives, I think.  

Poland has a 100 Zlotych for Zamenhof who was from Bialystock.  Cuba has a 1 peso, because an international Esperanto conference was held in Havana.  And Croatia has a bi-metallic 25 kuna.

According to a book I have called Esperanto by Creswell & Hartley,  Zamenhof  intended Esperanto as "an auxiliary language," not to replace national languages but to supplement them, as an aid to communication and  peace making.    Most of the book, however, is a grammar.