Issued by Italy in 2001, this commemorative stamp honors the 1700th anniversary of the founding of the Republic of San Marino, the world’s oldest surviving republic. The design by A.M. Maresca depicts the majestic Guaita Tower perched atop Mount Titano, symbolizing San Marino’s enduring independence and medieval heritage. The San Marino coat of arms appears in the upper left corner, adding a touch of heraldic dignity. With a face value of €0.41 (equivalent to 800 lire), the stamp celebrates centuries of friendship between Italy and its microstate neighbor.