I managed to capture this historical moment a few months ago about an RM50 banknote sold at RM600,000 (144700.38 USD). The banknote is sought after because the serial number is AA0000001.
Link to Trigometric Auction result: https://auctions.trigo.co/lots/view/4-1VS8VK/50-ringgit-12th-series-zeti-aziz-pmg-66epq