The Uncirculated Mint Brunei 50 Sen Coin featuring Sultan Hassanal Bolkiah from 1988 is a valuable addition to any coin collection. This copper-nickel coin is from the country of Brunei Darussalam and is in round shape. It is uncertified, making it a unique and authentic piece. The coin has a denomination of 50 Sen and is a standard circulation coin from the Sultan's reign, making it a sought-after item for collectors interested in Asian coins.