Australian twenty-cent coin
Australia | |
| Value | 0.2 AUD |
|---|---|
| Mass | 11.3 g |
| Diameter | 28.65 mm |
| Thickness | 2.50 mm |
| Edge | milled |
| Composition | 75% Copper, 25% Nickel |
| Years of minting | 1966–present |
| Catalog number | — |
| Obverse | |
| Design | Queen Elizabeth II (1966–2023) King Charles III (2024–present) |
| Designer | Various (1966–2023) Dan Thorne (2024–present) |
| Design date | 2024 |
| Reverse | |
| Design | Platypus |
| Designer | Stuart Devlin |
| Design date | 1966 |
The twenty-cent coin of the Australian decimal currency system was issued with conversion to decimal currency on 14 February 1966, replacing the florin which was equivalent to two shillings, a tenth of a pound.
Obverse face designs have been: from 1966 to 1984, the head of Queen Elizabeth II by Arnold Machin; from 1985 to 1998, the head by Raphael Maklouf; from 1999 to 2019, the head by Ian Rank-Broadley; and in 2019 the head by Jody Clark was introduced. The obverse has the inscription AUSTRALIA and the year of issue on the right hand side, and ELIZABETH II on the left hand side.
Stuart Devlin's platypus, introduced in 1966, became the standard design for the reverse face.
The United Nations 20c was the first commemorative 20c coin issued for circulation in 1995. Commemorative designs had been issued for circulation previously in other denominations.
20c coins are legal tender for amounts not exceeding $5.