500 Tenge Frilled-neck Lizard

Part of Kazakhstan's long-running wildlife series, this coin targets the frilled-neck lizard — a species entirely native to northern Australia and southern New Guinea, with no natural presence in Central Asia. Kazakhstan's national bank was among the more aggressive issuers of collectible wildlife silver in the late 2000s, frequently choosing exotic fauna with strong international collector appeal over domestically relevant subjects. The rectangular format — unusual for circulation-adjacent denominations — was a deliberate production choice to distinguish the series on the secondary market.