10 Euros Elysée Treaty

The Élysée Treaty of January 1963 was itself a Cold War improvisation — de Gaulle and Adenauer had no formal diplomatic framework for bilateral reconciliation, so they built one from scratch, signing in the Salon des Fêtes at the Élysée Palace six months after de Gaulle's Bundestag speech stunned the German political establishment. The 50th anniversary issue from Monnaie de Paris was struck jointly with the Bundesrepublik Deutschland, with the German Mint producing a parallel commemorative — a rare instance of coordinated sovereign coinage between two eurozone states.