Other countries–Stamps of Slovenian interest

Kingdom of Yugoslavia

,345 A,Kingdom of Yugoslavia. Cover, franked with 10 Din., sent from Auxiliary post office "*SV. VID pri GROBELNEM / (GROBELNO)*" via post office Grobelno (8.VII.38) to Zagreb (8.VII.38). From there with airmail via Zemun (9.VII.38) to Vienna (9.VII.38). Rare and atractive combination.