25.6mm diameter.  ISTITUTO POLIGRAFICO E ZECCO DELLA STATO 1988 DRIUTTI around, in centre facade of building, THE MAIN BUILDING · LE PALAIS · STAATSDRUCKERI below.  R. BIMETALL MUNZE * SCHULER PRESSE * around, in centre view of coining presses and coins, CASSOL in lower left field.

Ex David Rogers collection.