1 Dollar - Elizabeth II 4th Portrait - Mob of Roos - Hologram Version

The hologram dollar was introduced by the Royal Australian Mint as an anti-counterfeiting measure at a time when sophisticated coin forgery — particularly of the high-denomination one-dollar piece — had become a genuine concern for the Reserve Bank of Australia. Embedding a holographic foil into a circulating aluminium bronze coin presented significant technical challenges in the striking process, and the 2004 issue was among the earliest successful integrations of that technology into an Australian base-metal circulation coin.

Survival in collectible condition is complicated by the hologram's sensitivity to handling — even light abrasion degrades it irreversibly.