Issued in 1974, this Belgian 4F commemorative stamp marks the 10th anniversary (1964–1974) of the Fêtes de la Jeunesse Laïque / Feesten van de Vrijzinnige Jeugd—the country’s secular youth festivals promoting free-thought education. The design features expressive line-art portraits of two children symbolizing youth, inclusiveness, and progressive ideals, set against a calm blue-violet background. The emblem at upper right represents the secular movement’s torch of knowledge. A clean, modern composition typical of Belgium’s socially themed issues of the 1970s, it remains a sought-after thematic piece for collectors of education, youth movements, and Belgian cultural history.