5 Dollars - Leonard I Billy Hamilton

Hutt River Province declared independence from Western Australia in 1970 after a dispute over wheat production quotas — Leonard Casley, a farmer who styled himself Prince Leonard I, exploited an obscure legal argument rooted in the Treason Act 1495 to assert that the Crown had effectively abandoned its rights over his land. The micronation issued its own currency with surprising consistency for decades, and pieces like this one circulated internally and were sold as souvenirs, creating a strange dual function that makes condition assessment genuinely complicated.

Billy Hamilton was Hutt River's nominal Finance Minister during this period.