Twenty years of diplomatic relations, memoranda of understanding and cooperation. Between the Republic of San Marino and the Republic of Croatia, a relationship of Good Friendship has now been consolidated, which goes well beyond official papers and formal relations. To seal this ‘pact’ of brotherhood, the Azienda Autonoma di Stato Filatelia e Numismatica of San Marino and its Croatian sister company have decided to celebrate the 20th anniversary of diplomatic relations with a joint philatelic issue. A real work of beauty that of the joint sheet that intends to retrace the history of the two countries through images. Thus, the effigy of Marino, a stonemason from the island of Rab, who, according to legend, founded the Republic of Titan, becomes the ideal background for the two 7.10 HRK stamps.