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Italy issued special postage stamps for the part of northern Dalmatia it had occupied during World War I, necessitated by the locals' use of Austrian currency. The stamps were produced as surcharges of Italian stamps; the first appeared 1 May 1919, and consisted of the Italian 1-lira overprinted "una / corona".

5c and 10c overprints were issued in 1921, reading "5[10] / centesimi / di corona", followed by an additional five values in 1922. Similar overprints were made for special delivery and postage due stamps.

Soon after the annexed territories switched to Italian currency and stamps. As a result, usage was uncommon and validly-used stamps are today worth about 50-100% more than unused. They are easily confused with the Italian issues used in occupied Austria; the Dalmatian overprints are distinguished by their use of a sans serif typeface.