On May 5, 2022, Croatia and Switzerland jointly issued twin stamps. The subject of lakes was selected for this project. For their design, the Croatians selected a widening of the River Krka, in the middle of which Visovac Island is found. This island is 200 metres long and has been inhabited since the 14th century. The smallest book in the world, containing the Lord’s Prayer in seven languages, and a valuable copy of Aesop’s fables are kept on the island. Both are part of a collection of monastic treasures assembled by Franciscan monks.
Switzerland chose Lake Cauma near Flims, which also has a very picturesque, albeit slightly smaller island. The Romansh dialect Sursilvan, in which the lake is called “Lag la Cauma”, was intentionally used
in the name.
Croatia issued both stamps in sheetlets of 9 stamps [9×9] while Switzerland produced miniature sheets of 16 stamps [4×4]. Mixed FDCs with all 4 stamps became also available.