Dante Pescò, also known as Giandante X, was a Milanese anarchist who participated as a militant, militiaman and artist in some of the major struggles of antifascism in the 1920s and 1930s, from the street clashes against the Blackshirts in Italy to the Spanish Civil War. The article retraces two decades of Giandante X’s oeuvre, concentrating on his work for Antonio Gramsci’s l’Unità and on his manifold agit-prop production for the International Brigades.