King Baudouin I, Royal Effigy Type 'Poortman'

Belgium · 1968 · 3.50 F

This definitive stamp features a portrait of King Baudouin I of Belgium, facing left. The design, known as the 'Poortman' type, was a long-running series used for regular postage. The denomination is prominently displayed, set against a solid color background.

Issued during the long reign of King Baudouin (1951-1993), this stamp represents a period of post-war stability and economic growth in Belgium. Definitive series like this were the workhorses of the Belgian postal system for many years.