| Issuer | Australia |
| Year | 1998-2019 |
| Type | Non-circulating coin |
| Value | 20 Cents |
| Currency | Dollar (1966-date) |
| Composition | Silver (.999) |
| Weight | 13.36 g |
| Dimensions | 28.52 mm |
| Thickness | 2.5 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#403a |
| Obverse description | 4th portrait of Queen Elizabeth II facing right wearing the Girls of Great Britain and Ireland Tiara |
| Obverse script | Latin |
| Obverse lettering | ELIZABETH II AUSTRALIA 1998 IRB |
| Reverse description | Platypus with denomination superimposed |
| Reverse script | Latin |
| Reverse lettering | 20 SD |
| Edge | Reeded |
| Mint | |
| Mintage | 1998 - Proof in Masterpieces in Silver Set - 15 000 2004 - Proof in Standard Fine Silver Year Set - 6 500 2009 - Proof in Standard Fine Silver Year Set - 2 231 2010 - Proof in Standard Fine Silver Year Set - 2 040 2011 - Proof in Standard Fine Silver Year Set - 2 072 2012 - Proof in Standard Fine Silver Year Set - 1 400 2013 - Proof in Individual RAM Case - 5 000 2013 - Proof in Standard Fine Silver Year Set - 2 000 2014 - Proof in Individual Case - 1 000 2014 - Proof in Standard Fine Silver Year Set - 500 2015 - Proof in Standard Fine Silver Year Set - 800 2016 - Proof in 8 Coin Fine Silver Year Set - 1 966 2017 - Proof in Standard Fine Silver Year Set - 1 000 2018 - Proof in Armistice Fine Silver Year Set - 1 000 2019 - Proof in Standard Fine Silver Year Set - 1 000 |
| Catalog ID | 6351451860 |
| Comments |
