Issued by Montenegro in 1910, this 25-para deep blue stamp commemorates the 50th anniversary of King Nicholas I’s reign (1860–1910). The central portrait depicts King Nicholas I Petrovich-Njegoš in traditional Montenegrin attire, framed by intricate oak and laurel leaves symbolizing strength and victory. The crown motif below signifies the elevation of Montenegro from a principality to a kingdom that same year. The bold Cyrillic inscription “Поштe Црнe Горe” translates to “Post of Montenegro.”

Collector’s Note:
This stamp marks a turning point in Montenegrin history—the nation’s transition into a kingdom and one of the last issues before World War I transformed the Balkans. Its detailed engraving and rich symbolism make it a prized addition to royal and Balkan-themed collections.