Stamps used in Slovenia, Croatia and Bosnia. They were in use from 1919 till 1921 when first regular Yugoslav stamps were issued. The stamps shown were designed by a Slovene J. Vavpotic and are regarded as first Slovenian stamps:

1,2: 1919 Chain-breaker definitives
3-5: 1919 Definitives: Yugoslavia (allegory), Angel and King Peter I
6,7: 1919 Newspaper Stamps
8-11: 1920 Definitives: Chain-breaker, Yugoslavia and Peter I
12,13: 1920 Surcharges on Newspaper Stamps
14: 1920 Plebiscite in Carinthia (overprint on newspaper stamps)
15-18: 1919 Postage Due Stamps
19,20: 1920 Postage Due Stamps