Why? Because even a banged up one that has been circulating for 55 years can still be worth a couple of hundred dollars.
The so called ‘1966 Wavy Baseline 20 cent’ is the most sought after rare Australian 20 cent coin. For some reason one of reverse (tails) dies used in London was damaged and touched up resulting in a distinctive ‘Wave’ on the baseline of the 2 on the reverse of the coin. Australian 1966 London 20 Cent Wavy Baseline VarietyĪbout half of the Australian 1966 20 cent coins were struck by the Royal Mint in London. In this article we’ll talk about the 4 rare Australian 20c coins you can look out for in your change and do our best to assign a value to them. The Australian 20 cent coin was first minted in 1966 and in it’s more than 50 year history there are some rare Australian 20 cent coins that are sought after by collectors.