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Wikipedia Says
When the British regained control of Malaya after World War II, notes were issued in 1945 (dated 1941), in denominations of 1, 5, 10, 50, 100, 1,000 and 10,000 dollars.
It isn't completely clear whether "issued for circulation" meant general public circulation for the highest value banknotes, but there is nothing said to the contrary.
numista.com says a 1953 10,000 dollar banknote was "issued for circulation".