Postage Stamp : The 100th Anniversary of Fermioni
Date of Issue : March 11, 2026
Description : This stamp commemorates the 100th anniversary of the formulation of Fermi-Dirac statistics (1926) and the naming of “fermions”—particles that follow these statistics and obey the Pauli exclusion principle. The right side features a portrait of the Nobel Prize-winning Italian physicist Enrico Fermi. The left side displays a stylized physics diagram: a parabolic curve representing a potential well with horizontal energy levels, populated by yellow dots. This perfectly illustrates fermions sequentially filling quantum states, as no two identical fermions can occupy the exact same state simultaneously.
Postage Stamp : The 100th Anniversary of the Birth of Vittorio Bachelet, 1926-1980
Date of Issue : February 20, 2026
Description : This stamp honors Vittorio Bachelet (1926–1980), a prominent Italian jurist, academic, and politician. He served as the vice president of the High Council of the Judiciary in Italy before being tragically assassinated by the Red Brigades in 1980. The stamp features his portrait holding an open book, alongside the text “GIURISTA E POLITICO” (Jurist and Politician) and his life dates “1926 – 1980”.