50th Anniversary of The first Europa issue on registered cover from Republika Srpska
In 2005 and 2006, many European postal operators (and some outside Europe), decided to celebrate 50th Anniversary of Europa CEPT stamps. Many of them issued stamps both in sheetlets and minisheeets, and also imperforated versions, and same thing did Post of Republika Srpska on 30.8.2005. I had several copies of this minisheet, and my friend from Istočno Sarajevo, capital city of Republika Srpska, helped me and sent me this cover. Thank you Goran!