This blue-toned 12 Lei commemorative stamp was issued by Romania in 1939 to mark the 100th Anniversary of the Romanian Postal Service (1839–1939). It features a distinguished portrait of King Carol I, Romania’s first monarch, shown in full military uniform adorned with decorations. The design highlights national pride in Romania’s modern postal heritage and celebrates a century of organized communication. Inscribed “POSTA ROMANA” and printed by Fabrica de Timbre, this issue is a classic example of Romania’s elegant pre-war philatelic design.