50 Dollars - Hassanal Bolkiah Sultan's 50th Birthday

Hassanal Bolkiah turned 50 in July 1996, and by that point he had already held the sultanate for nearly three decades — having ascended in 1967 following his father's abdication. Brunei's oil wealth meant commemorative issues from this period were produced with little regard for cost constraints, and the .999 fine silver specification here is notably purer than the .925 used for most contemporary Commonwealth commemoratives.

KM#66 was struck in proof only. Mintage figures for Brunei issues of this type were rarely published officially, making population data from third-party graders the most reliable indicator of surviving numbers.