This Italian postage stamp, issued in 1980, honors Saint Catherine of Siena, one of Italy’s most revered mystics and patron saints. The design features a sculpted bust of Saint Catherine rendered against a light green background, with her birth and death years (1347–1380) inscribed above. The sculpture captures her serene, contemplative expression, symbolizing her deep spirituality and influence in the 14th century. Printed by the Istituto Poligrafico e Zecca dello Stato in Rome, this 170 lire issue celebrates her legacy as a theologian, peacemaker, and Doctor of the Church.