Bosnia and Herzegovina. Michel 30, 31, 34 on cover, 2+3 + 4×10 (block of four) h on registered special delivery cover sent from K. und K.MILIT.POST SARAJEVO 5, 21.12.10 to Vienna, with arrival pmk on the reverse. Rare registration label from the P.O. of the Bosnian-Herzegovinian Landtag, which existed for only one legislative period (1910–1915), which was dissolved as a result of the assassination attempt on the heir to the throne and the resulting outbreak of World War I. Superb and interesting.
