1000 Ringgit

Brunei's 1000 Ringgit is among the highest-denomination notes ever issued for general circulation in Southeast Asia, and the figures involved are not trivial — at the time, 1000 Brunei Ringgit was pegged at par with the Singapore Dollar, making this a note with genuine transactional weight rather than ceremonial status. The Currency Interchangeability Agreement between Brunei and Singapore, signed in 1967, remained in force throughout this series' entire lifespan, meaning the note was legally accepted at face value in Singapore as well.

Bradbury Wilkinson's New Malden facility handled much of the Commonwealth's high-security printing work during this period, and their intaglio work is consistently tight. The series ran nearly a decade with minimal revision — watermark-only security by modern standards, though that was not unusual for high-denomination notes of this vintage intended for bank-to-bank rather than hand-to-hand use.