2023Stamp Day - 150 Years of the First Correspondence Card of Serbia - Set

The first postal correspondence card in the world was put into circulation in Austria-Hungary on October 1, 1869, and for that time it represented an innovation in postal traffic. Recognizing the importance and need of correspondence cards, the Principality of Serbia decided to take this step less than four years later – in 1873. Previously, Prince Milan, by decree of October 23, 1871, authorized the Minister of the Interior to put into circulation traffic cards, i.e. correspondence cards, for domestic and international traffic, when he deems it necessary. The Ministry of the Interior was the first to put correspondence cards for domestic traffic into circulation, on July 13, 1873 (July 1 according to the old calendar.)