Azores had own coinage only during Portugal Monarchy .
Belarus use only banknotes. There are no circulation coinage. just commemoratives.
For other countries, like north korea, mauritania etc ( including Azores) , you can search in " country list" , then click on exact coin ( for example, on 10 ougiya , Mauritania. or 10 reis, Azores, And You will find at the bottom of page who from NUMISTA members have this exact coin for exchange.
Good luck,
David
