In 1952, the board of directors was renamed the Board of Commissioners of Malaya and British Borneo. In 1953, the board of directors began issuing notes to Malaya, Singapore, Sarawak, British North Borneo and Brunei. It was known as Malaya and the British dollar Borneo.  In 1967, the Malaya and British Borneo dollars were replaced by three new currencies: the Malaysian dollar, the Singapore dollar and the Brunei dollar, all at face value.  The Brunei dollar has been the official currency of the Sultanate of Brunei since 1967 and is issued by the authoritarian Monetari Brunei Darussalam. In 1967, the coins were imported in denominations of 1, 5, 10, 20 and 50 cents. With the exception of the 1 cent bronze, the coins were shaped into copper sillys. In 1986, copper steel replaced bronze.  Later, in 2008, the 1 cent coins were switched to brass.
A title from the 1966 Straits Time before the | agreement Source: Straits Times In addition, Singapore and Brunei still use the same deal today, so Bruneians can use their Brunei Ringgits to buy items in Singapore without converting! Second series – This series was the same as the first, except that the portrait of Sultan Omar Ali Saifuddin was replaced by the portrait of Sultan Hassanal Bolkiah, 29th and current ruler of Brunei. All subsequent coins have the portrait of Hassanal Bolkiah. In addition, two new higher unit values were issued in 1979. MaS added that this has been extended to Brunei through the agreement and attachment of the Brunei dollar to the singdollar, which has led to an increase in trade and investment flows between the two countries. While the Singapore dollar is no longer based on a currency card – the MAS operates what is known as a float regime – the Brunei dollar continues to operate according to the principles of the former Currency Board. Instead of pegged to the pound sterling, the AMBD pegged the Brunei dollar against the Singapore dollar. However, the AMBD does not operate an orthodox currency board, as it has a reserve slightly lower than the full reserve of assets in Singapore dollars. Why does the agreement exist now? Of course, Brunei benefits enormously from having a stable currency to which one can be tied, without the Singapore dollar, our currency would fluctuate considerably (since we depend almost entirely on oil and gas exports, which changes with price changes). I imagine that if the deal is validated (unlikely), we will most likely start using US dollars (on which oil prices are based anyway). Malaysia and Singapore, which have already merged monetaryly, began a political merger in 1963 after independence, but this political union collapsed in 1965. .