Obverse: Michelangelo's paving of Piazza del Campidoglio in Rome, where the Treaties were signed in 1947, it's design composing an “E” symbolising Europe on the right; in the centre, the mintmark “R”; on the left, within the pavement design, the initials of the 6 signing Countries: “BE”, “DE”, “IT”, “FR”, “LU”, “NL”; above, arch-shaped“REPUBBLICA ITALIANA”; below, “2007”; on the right “m”, initial of the designer Roberto Mauri; iaround, the 12 stars of the European Community. Reverse: the Campidoglio in Rome; on the right, Europa Star logo ; on the left, the coin's value “20 EURO”; below, the mintmark "R"; on top, on two lines, “TRATTATI DI ROMA” and “50° ANNIVERSATIO”.