5 Dollars - Leonard I Air Battle of Britain

Hutt River Province, the self-declared micronation in Western Australia founded by Leonard Casley in 1970 after a dispute with the state government over wheat quotas, issued a sustained series of commemorative coinage through the late 1980s and 1990s. These pieces circulated as legal tender within the province — a territory never recognized by Australia — and were produced primarily for the collector market rather than genuine exchange.

The Battle of Britain connection is personal: Casley styled himself Prince Leonard I and cultivated associations with British heritage as part of the province's legitimacy claims. Collector demand for Hutt River issues has always been thin outside niche micronation collecting circles.