5 Dollars - Charles III Corinthian Helmet

The Corinthian helmet occupies an outsized place in ancient Greek military history — functionally obsolete by the late classical period due to its severe restriction of hearing and peripheral vision, yet so aesthetically dominant that it persisted in ceremonial and sculptural use for centuries after infantry tactics had moved on. The Solomon Islands has become one of the more prolific issuers of large-format silver in the Pacific commemorative market, with this piece falling squarely into a collector series rather than any domestic monetary purpose — the face value bears no relationship to the coin's actual procurement cost.