Issued in 1983, this Belgian commemorative stamp celebrates "Dag van de Postzegel" (Stamp Day). The design features a striking modernist composition with dynamic black and red linear elements converging over a radiant white burst, symbolizing communication and innovation in postal services. The stylized knot motif on the left adds a touch of cultural symbolism. Bilingual inscriptions (Dutch and French) reflect Belgium’s linguistic heritage. Denominated at 11 Francs, this stamp is a classic example of abstract 1980s philatelic art.