20 Cents

Australian 20-Cent Platypus Coin

Australia · Circulated (1966 - Present)

The reverse features a platypus swimming, designed by Stuart Devlin, with the numeral '20' centered. The obverse depicts the effigy of Queen Elizabeth II.

Country: Australia
Year: Circulated (1966 - Present)
Denomination: 20 Cents
Metal: 75% Copper, 25% Nickel (Cupro-Nickel)

This report is AI-generated and can be wrong. Always verify grade, authenticity, and value with a qualified dealer or certified grading service before buying, selling, or insuring.

Identified March 22, 2026More australia coins →

Explore Australian 20-Cent Platypus Coin in the encyclopedia →

Identify your own coins.

Get a report just like this from any photo, free.

App Store Google Play

Overview

The reverse features a platypus swimming, designed by Stuart Devlin, with the numeral '20' centered. The obverse depicts the effigy of Queen Elizabeth II.

Historical significance

Introduced in 1966 with the decimalisation of Australian currency, replacing the florin. It is one of the standard circulating coins in Australia and highlights the continent's unique native fauna.

Estimated value

$0.20 - $5.00 USD (Depends on year, mint mark, and condition; common circulated coins are worth face value).

Care & preservation

Handle by the edges to avoid fingerprints; store in a dry environment using a PVC-free holder or flip. Never clean the coin with chemicals, as this can permanently damage the surface and reduce collector value.

Other australia coins

See all

5 Cent Coin

Australia · Dates range based on observation, commonly minted from 1966 to present.

5 cents

Australian 5 Cents (Echidna)

Australia · 1977

5 Cents

Australian George VI Shilling - Ram Head

Australia (Royal Mint) · 1944

One Shilling

Australian 2 Dollar Coin (JC Effigy)

Australia · 2019

2 Dollars

Australian 50 Cent Coin

Australia · 1988

50 cents

Australian 50 Cents

Australia · 1975

50 Cents

Overview

Historical significance

Estimated value

Care & preservation

Other australia coins

Learn about Australian 20-cent Platypus Coin in the encyclopedia