What are the known Australian decimal error coins?

Australian decimal error coins include various types such as the 1930 penny, which is highly sought after due to its rarity, and the 1981 20-cent coin with the reverse die misaligned, resulting in a striking error. Other notable examples include the 2000 $1 coin minted with a missing "E" in "One," and the 2005 20-cent piece with a double-struck design. Collectors often seek these errors for their unique characteristics and potential value.