Later they were resmelted by the Royal Australian Mint, leaving the coins relatively rare. Significant premiums have been paid for a small number of mint rolls from these years that have shown up in auctions. The Royal Australian Mint website reports an issue of 2.7 million coins for 1985, but no 20c was minted for 1988. None were released in 1983-84 and there were no coins minted for circulation in 1986–1993 and 1995 (Standard platypus design only) See also Coins of the Australian dollar References External links Advertisement for the Decimal Transition Twenty Cent | Royal Australian Mint Australian Decimal Currency Coins from Australia / Coin Type: Twenty Cents - Online Coin Club Currencies introduced in 1966 Decimal coins of Australia Twenty-cent coins