When did $10,000 banknotes start to circulate publicly in the British colonies (colonies, crown colonies, "protected states", "protectorates") of South East Asia?
The Straits dollar was probably the first to have $10,000 banknotes in 1922. However, it was only used for inter-bank transactions. I was not able to find information about the Malayan dollar (which succeeded the Straits dollar). If not mistaken, the successor of the Malayan dollar, the Malaya and British Borneo dollar, had $10,000 banknotes that were publicly circulated. Two successors of the Malaya and British Borneo dollar — the Singapore dollar and the Brunei dollar — had and still have publicly circulating $10,000 banknotes.
Using Google Image search, I was able to confirm that all the currencies mentioned above had $10,000 banknotes. The only issue is: which was the first series to have publicly-circulated $10,000 banknotes? When did public circulation start?