This pair of French definitive stamps from 1982 highlights two iconic historic fortifications, issued under the “Affranchis Postes” series. The 2,03 Franc stamp features the Tour de Montlhéry, a medieval tower south of Paris known for its strategic importance. The 3,36 Franc stamp depicts the famous Château d’If, the island fortress near Marseille, widely recognized from literary history. Designed in a clean engraved style by Durrens, these stamps combine architectural heritage with functional postal use. Their minimalist yet detailed linework reflects the elegance of French definitive issues of the early 1980s. A desirable thematic addition for collectors of castles, architecture, or French postal history.