| Emitent | Australia |
|---|---|
| Rok | 1991 |
| Typ | Non-circulating coin |
| Hodnota | 20 Cents |
| Měna | Dollar (1966-date) |
| Složení | Silver (.925) |
| Hmotnost | 13.09 g |
| Průměr | 28.65 mm |
| Tloušťka | 2.5 mm |
| Tvar | Round |
| Technika | Milled |
| Orientace | Medal alignment ↑↑ |
| Rytci | |
| V oběhu do | |
| Reference | KM#82a |
| Popis líce | 3rd portrait of Queen Elizabeth II facing right wearing the King George IV State Diadem. |
|---|---|
| Písmo líce | Latin |
| Opis líce | ELIZABETH II AUSTRALIA 1991 RDM |
| Popis rubu | Platypus in water, value superimposed. |
| Písmo rubu | Latin |
| Opis rubu | 20 SD |
| Hrana | Reeded |
| Mincovna | |
| Náklad | 1991 - Proof in Masterpieces in Silver Set - 25 000 |
| ID Numisquare | 1790144940 |
| Poznámky |