The coin was equivalent in its dimensions and value to the British pre-decimal penny, as the two currencies were originally fixed at par.
All of the pennies bearing George VI and Elizabeth II had a kangaroo on the reverse.
During the George VI era, coins minted at Perth had a dot either at the end of the word "PENNY", after the word "AUSTRALIA" or in between the "K" and "G" above the end of the kangaroo's tail, while coins from Melbourne did not have a dot.
[2] It is highly sought after by coin collectors, and a 1930 penny in very fine condition can be worth A$45,000 or more.
Most varieties arose as a result of either historical events that impacted normal operation of the country's coin mints or intended changes in the coin minting processes.