This pair of stamps, issued by the Republic of San Marino in 1967, features masterpieces by the Italian Baroque painter Guercino (Giovanni Francesco Barbieri, 1591–1666). The Lire 170 value depicts St. Francis in Prayer, showing the saint in a moment of spiritual devotion, arms raised toward the heavens. The Lire 40 stamp portrays a bearded saint holding a model of a church, symbolizing faith and dedication. Both stamps highlight San Marino’s strong religious heritage and admiration for Italian art. A fine issue appealing to collectors of religious themes, art history, and San Marino philately.