50 Cents - Elizabeth II 4th Portrait - Australian Square Kookaburra

The Square Kookaburra series is one of the more unusual product lines the Perth Mint has sustained across multiple decades, distinguished by its non-circular format at a time when square legal tender coins remained a genuine rarity in collector markets. The 2004 issue falls within the Ian Rank-Broadley obverse period, the fourth portrait of Elizabeth II adopted by Australia in 1999.

KM#876 is a low-mintage bullion-adjacent piece — struck in .999 silver but priced and marketed primarily as a collectible rather than a weight-for-weight silver play, given that 15.568g sits well below the one-ounce threshold the Perth Mint reserved for its mainstream Kookaburra bullion dollar series.