This year marks the 85th anniversary of the foundation of Vatican City State. On 11 February 1929 the “Lateran Treaty”, taken from the name of the Saint John Lateran building where the agreement was signed, marked the resolution of the “Roman Question”, which arose in 1870 with the fall of the city of Rome. The relationship between the Kingdom of Italy and the Church was previously disciplined by the so-called “Law of Guarantees”, approved by the Italian parliament on 13 May 1871, but not recognized by the Supreme Pontiffs. Under the Lateran Treaty, the newly created State obtained full sovereignty of the square and Basilica of Saint Peter, the Vatican buildings, the gardens and some neighboring structures. The major Roman basilicas, the gardens at Castel Gandolfo and other buildings and structures in the city of Rome obtained instead the right of “extraterritoriality”. In addition to recognizing the independence and the sovereignty of the Holy See and the foundation of Vatican City State, the Lateran Treaty also touched on the role of the Catholic religion in Italian civil society. The Philatelic and Numismatic Office will celebrate the event with the issue of a series of four postcards depicting details of a painting in the Sala Marconi of Vatican Radio. The laudable work painted by artist Daniela Longo has been reproduced thanks to the kind permission of Vatican Radio. It depicts the Popes who have reigned since the foundation of Vatican City State to the current day: Pius XI, Pius XII, John XXIII, Paul VI, John Paul I, John Paul II, Benedict XVI and Pope Francis.