The Madonna of the Pinks by Raphael (1483-1520). The postcard is from a painting of oil on fruitwood.
Raphael Sanzio, but usually known by his first name (in Italian Raffaello), was an Italian painter of the High Renaissance. Together with Michelangelo and Leonardo da Vinci, he forms the traditional trinity of great masters of that period. A large body of Raphael’s work remains, especially in the Vatican. The Vatican’s frescoed Raphael Rooms were the central, and the largest, work of his career, although unfinished at his death at just 37.
National Gallery, London.