The krone was a short-lived, provisional currency used in parts of the then newly formed Kingdom of Serbs, Croats, and Slovenes which had previously been part of the Austro-Hungarian Empire.
After World War I, Austria-Hungary broke up into many states and its southeastern portion merged with Serbia to form the KSCS. The krone replaced the Austro-Hungarian krone at par on November 12, 1918. It circulated alongside the Serbian dinar in Bosnia and Herzegovina, Croatia and Slovenia with an exchange rate of 1 dinar = 4 kronen. The exact date at which the krone ceased to circulate is unclear, with one source indicating that the krone was still in circulation at the end of 1922.[1]
The 1919 First Provisional Issue of the Yugoslav krone was (very similar to the Banknotes of the Czechoslovak koruna (1919) issued on 1912 Austro-Hungarian banknotes (with a black validating oval overprint) in 10, 20, 50, 100, and 1,000 Kronen denominations. The 1919 Second Provisional Issue contained the same denominations of 1912 Austro-Hungarian notes, but instead of an oval overprint, adhesive stamps were used for validation. The stamps on 10, 20 and 50 kronen were bilingual (Serbo-Croatian and Slovenian), while stamps on the 100 and 1000 krone notes could be any of the three languages.
A brief 1919 dinar issue ( 1⁄2, 1, and 5 dinara) was replaced by the Ministry of Finance of the KSCS with a 1919 Krone Provisional Issue ("krone on dinar" notes), which were printed as dinar and overprinted with krone at the ratio of 1 dinar = 4 kronen. Denominations issued were 2, 4, 20, 40, 80, 400 and 4000 kronen on 1⁄2, 1, 5, 10, 20, 100 and 1000 dinara. Only the 2 kronen on 1⁄2 dinar and 4 kronen on 1 dinar had variants without the overprint. It is as yet ambiguous as to whether the overprinted version was issued before or after.