Issued in 1910, this elegant purple 50-para stamp commemorates the 50th anniversary of King Nikola I’s reign, marking his rule from 1860 to 1910. The finely engraved profile of the monarch is framed by rich ornamental motifs, typical of early 20th-century Balkan design. Printed during a pivotal moment when Montenegro transitioned from a principality to a kingdom, these Jubilee issues are highly sought after for their historical significance and refined craftsmanship. This example shows excellent detail in the portrait engraving and crisp lettering in Cyrillic script, making it a standout piece in any Balkan or royal-themed collection.