10 Dollars

Brunei's 2024 polymer series marks the first complete reissue under the AMBD's own branding since the authority formally replaced the Brunei Currency and Monetary Board in 2011. The switch to polymer substrate aligns Brunei with neighboring Singapore, whose Currency Interchangeability Agreement with Brunei — in force since 1967 — means both countries' notes circulate at par across the border. Whether Singapore's own polymer transition influenced the timing here is not documented, but the parallel is hard to ignore.

The transparent window integration on this issue is a meaningful security upgrade over the preceding cotton-paper series, which relied more heavily on traditional intaglio and watermark combinations.