Produced in hardback format, the folder has the capacity to accommodate the First Year of Issue 1966 Platypus 20c and every commemorative 20c type issued for circulation from the first (1995) to the most recent (2016) – with room for future issues! The perfect finishing touch, the folder also includes the title and mintage of the 1966 20c and every circulating commemorative 20c from 1995 to 2016!