| Issuer | Australia |
| Year | 2011 |
| Type | Non-circulating coin |
| Value | 50 Cents |
| Currency | Dollar (1966-date) |
| Composition | Silver (.999) (Pad Printed) |
| Weight | 15.553 g |
| Dimensions | 36.6 mm |
| Thickness | 2.5 mm |
| Shape and Technique | Round Milled, Coloured |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#1532 |
| 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 IRB 1/2 oz 999 Silver 2011 50 cents |
| Reverse description | This coin depicts a cuddly baby koala set against a background of golden wattle waratah and flowering gums. The design includes the koala’s insect friend a cicada. |
| Reverse script | Latin |
| Reverse lettering | Australian Koala P EM |
| Edge | Reeded |
| Mint | P Perth Mint, Australia(1899-date) |
| Mintage | 2011 P - Proof - 10 000 |
| Catalog ID | 2754492120 |
| Comments |
