Slovenia, when part of the new Kingdom of the Serbs, Croats, and Slovenes in 1919, had its own stamps issued; the first of these was a series generally known as “chainbreakers”, after the depiction of a strong, triumphant male figure breaking free of his chains, which dangle from his wrists.
There were eight different denominations used on Slovenia chanibreaker stamps, each with its own color; sizes varied too, and parts of the design were cropped out on the smaller versions. The denominations ranged from 3 to 40 filler (1 krone = 100 filler).
A collector of Slovenian stamps should be able to identify these stamps, but how to do so may not be readily apparent at first. At the top of chainbreaker stamps, there is the Cyrillic inscription ДРЖАВА СХС; at the bottom, DRŽAVA SHS. Look for these phrases to identify Slovenian chainbreakers.
More on MegaMinistore: Poland rare stamps: buying and collecting Poczta Polska
The chainbreaker was used in a new design in 1920 (alongside other new designs).