This attractive 1979 San Marino commemorative set honors the renowned Italian metaphysical artist Giorgio de Chirico, featuring three of his significant artistic themes. The 170-lire stamp shows the artist’s expressive self-portrait, highlighting his distinctive introspective style. The 150-lire issue reproduces a symbolic seaside composition with horses and classical elements, reflecting his metaphysical symbolism. The 40-lire stamp presents a mysterious architectural scene with mannequin-like figures, a hallmark of de Chirico’s surreal visual language. Printed by Courvoisier, the set is valued by thematic collectors specializing in art, surrealism, and European painting issues.