| Description de l’avers |
Portrait of Sultan Haji Hassanal Bolkiah in traditional dress and songkok at right, with intaglio-style guilloche underprint in gold tones across the note. At left, a large commemorative vignette marks the 50th anniversary of the Currency Interchangeability Agreement between Brunei Darussalam and Singapore, incorporating floral motifs and the numeral '50'. A small vignette of the Sultan Omar Ali Saifuddien Mosque appears in the lower left corner beneath the Sultan's facsimile signature. |
| Légende de l’avers |
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| Description du revers |
At left, a guard of honour in ceremonial uniform stands at attention, while a group of students consults documents at a table in the middle ground, with a suspension bridge and tropical foliage in the background. At right, a colour-shifting window element contains a vignette of a domed civic building illuminated at night, framed by the commemorative inscription '1967–2017 / 50 Years of Currency Interchangeability Agreement / Singapore–Brunei Darussalam'. The numeral '50' appears in large format at upper centre against the gold polymer substrate. |
| Légende du revers |
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| Signature(s) |
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| Type de protection |
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| Description de la protection |
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| Variantes |
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The 2017 Currency Interchangeability Agreement commemorative marks fifty years of the monetary arrangement between Brunei and Singapore, under which both nations' dollars are accepted at par in either country — one of the few functioning currency unions between sovereign states. The agreement, formalized in 1967 when Singapore separated from Malaysia, has held without interruption through Asian financial crises and regional turbulence that destabilized far larger economies.
Polymer issues from AMBD are rare; most of the sultanate's circulating series has remained on paper. The switch in substrate for this commemorative was almost certainly driven by Singapore's parallel issue, which also appeared on polymer for the anniversary.