The Istituto Tecnico Superiore - as Politecnico di Milano was called in 1863 - did not have its own logo. The logo that we know today derives from a 1906 medallion which commemorated the didactic jubilee of Giuseppe Colombo, the second Politecnicoís Rector, designed by Luca Beltrami and engraved by Angelo Cappuccio.
The subject portrayed on the back side of the medallion is inspired by the cartoon of the School of Athens by Raphael, frescoed in the Stanza della Segnatura of the Vatican Museums in 1510. The large preparatory cartoon, whose dimensions are 285x804 cm, today preserved in the Pinacoteca Ambrosiana in Milan, unlike the final painting, does not have the background of Renaissance architecture, which is inspired by Bramanteís design for the renewal of the early-Christian basilica of Saint Peterís nor the figure of Heraclitus. In particular at the bottom at the right of the work, Raphael portrays Euclide or, according to some, Archimedes looking like Bramante, with some students, while he illustrates a theorem to disciples with the help of a compass.
In 1942 the design of the medallion was officially adopted as the mark of Politecnico and utilized as its raised seal for diplomas. In the 1970ís, the logo was redesigned and stylized: it lost its crown of points and the chiaroscuro of its lines. The version which was redesigned in 2002, is made up of a mark which was inspired by the version of the 1940ís and a logotype ("Politecnico di Milano") written with Futura type.