History
The Treaty of Rome is named after the city where it was signed, on March 25, 1957. Italy was not only one of the founding countries: it was the host country.
In 2007, for the 50th anniversary, thirteen countries struck the same design, each with its own legend. The Italian version reads TRATTATI DI ROMA, in the plural, like the two treaties signed that day: one for the European Economic Community and one for Euratom.
The Italian coin is struck in Rome itself, by the Istituto Poligrafico e Zecca dello Stato. The letter R, to the right of the year of issue, is its mint mark. Here, the city of the treaty and the city of the strike are one and the same.