Croatia Postage Due Stamp, 1919

Croatia · 1919 · 20 Fillér

This is a postage due stamp from the brief period of Croatian autonomy following the dissolution of the Austro-Hungarian Empire. The design is purely functional, featuring a large numeral '20' indicating the amount due, surrounded by an ornate frame. The text 'PORTOMARKA' at the top identifies it as a postage due stamp, with 'HRVATSKA' at the bottom indicating the country.

Issued in 1919 for the State of Slovenes, Croats and Serbs, these stamps were used to collect insufficient postage on mail. This period was a precursor to the formation of the Kingdom of Yugoslavia.