40 mm; 35.1 gms. Unlisted. Engraved by P. Giampaoli, coin die axis. Issued to commemorate sweeping changes brought about by the Second Ecumenical Council which included the replacement of Latin with native local languages at mass. A scattering of contact marks are seen through the fields with generous amounts of flash and luster. Razor sharp rims and fully original.，NGC MS-61.，
