1921 Kookaburra Halfpenny, Type 2

The key to understanding the value of the kookaburra halfpenny is to look at the imbalance in the numbers produced of the penny and the halfpenny.

In 1919, the Melbourne Mint began testing a square kookaburra coinage made from cupro-nickel. The penny was the only denomination produced in that year, minted in four different styles. No halfpenny was tested. In 1920, the mint expanded its focus and tested five pennies and one halfpenny. One year later, in 1921, the Melbourne Mint tested two pennies and again produced only one halfpenny design.

So, while eleven different penny designs were tested between 1919 and 1921, only two halfpenny designs were produced, 1920 and 1921.

If we look at the mintages out of each year, the scarcity of the halfpenny becomes overwhelming. One hundred and fifty pennies are available to collectors and just twelve halfpennies. 

Today's collectors are showing a marked preference for sets if, and when, they are available. The current sentiment is that a set is the mint's complete story, the total narrative.

While owning every coin can be prohibitive, both financially and from a time perspective, collectors also pursue themes within a series. A "sub-set", if you like. One that feels complete, resulting in a display-worthy set or collection.

And in the case of the Kookaburra coins, that can mean pursuing a penny and halfpenny, one of each denomination that was struck at the Melbourne Mint. 

We see it quite clearly in the proof gold market, not one coin, but two, the Proof Sovereign and the Proof Half Sovereign together. And the kookaburra series, the penny and the halfpenny. Or a complete three-coin set of kookaburra pennies, one of each of the dates in which the coins were struck.

Complete sets are naturally heirloom-worthy. They’re easier to pass down, easier to explain, and more likely to retain their identity over generations. Families understand the concept of the full set instantly.

Today's collectors are showing a marked preference for 'sets' if, and when, they are available. The current sentiment is that a 'set' is the mint's complete story, the total narrative.

Sets are naturally heirloom-worthy. They’re easier to pass down, easier to explain, and more likely to retain their identity over generations. Families can better understand the concept of the set.

Collectors aim for completion and while owning every coin can be prohibitive, both financially and from a time perspective, collectors also pursue themes within a series. And in the case of the Kookaburra coins, that can mean pursuing a penny and halfpenny, one of each denomination that was struck at the Melbourne Mint. A "sub-set", if you like. One that feels complete, resulting in a display-worthy set or collection.

Now let's consider the position of the Kookaburra Penny collector that wants a Kookaburra Halfpenny.

There are one hundred and fifty Kookaburra Pennies available to collectors. And that would be fine if there were the same number of halfpennies.

But, it’s a bad news story for halfpenny buyers because there is a pool of only 12 coins available to collectors.
It’s these numbers, 200 pennies and only 12 halfpennies,  that have made the Kookaburra Square Halfpenny one of Australia’s most elusive and sought-after coin rarities.
In demand from collectors of the kookaburra coin series. And in demand from buyers with a pure investment focus.