I am the currency of a country that is home to the world's largest active volcano, Mauna Loa, and is also the only U.S. state that grows coffee commercially. I've been influenced by the Spanish dollar and the Hawaiian Kingdom's own currency.

1. My coins and banknotes feature significant figures from the nation's history, including presidents and founding fathers.
2. My value is often tracked against major global currencies like the Euro and Japanese Yen.
3. I am also the currency used in territories like Guam and American Samoa.
4. My symbol is often represented as a vertical line through the letter 'S'.