Aussie coin collectors are scouring through their change, looking for a Mule Dollar.

A woman from Melbourne found an Australian dollar coin where the obverse was different from the others. The lettering and portrait were smaller and had a doubled rim. The story went viral on social media.

Australia 2000 1 Dollar Mule Comparison

Comparing the $1 mule on the left to a regular $1 coin on the right
(Image courtesy of the Australian Coin Blog)

The mule was first discovered in 2003, according to the Australian Coin Blog. Known as the “2000 $1 / 10 cent Mules,” the coins were sent to Perth for use in the casinos. At the time, the collectors and other interested people withdrew thousands of dollar coins from casinos and banks looking for the coin.

Australian coin experts suspect that the error occurred when someone accidentally installed the wrong obverse die into the coin press. Rather than using the die to strike the 25 mm dollar coin, the die that should strike the 23.6 10 cents coin was used. The 1.4 mm difference gives the impression of a doubled edge on the coin.

There are no statistics as to how many of these coins are in circulation. Considering they keep appearing every few years, the discovery causes a frenzy, especially amongst casual observers. It would be like someone finding an “extra leaf” Wisconsin quarter.

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