Brunei. Kerajaan Brunei. Brunei Monetary Council. 1972-1988 Sultan Hassanal Bolkiah Mu’izzaddin Waddaulah Issue. 50 dollars Type 1973. Date: 1973. Dimensions: 147 x 88 mm. Watermark: Sultan. Material: Paper. Solid security thread. Printer: Bradbury, Wilkinson & Co, New Malden, England. Front and back: Polychrome printing with dominant brown and green. Description of the front: Frame composed of guilloche patterns and rosettes with the value in the corners. Security background composed of multicolored rosettes in the center. Prefix and numbering in black. On the right, a portrait of Sultan Hassanal Bolkiah Mu’izzaddin Waddaulah in ceremonial uniform. Texts in English and Malay. Signature: Hassanal Bolkiah I. Description of the back: Texts in English and Malay. View of Sultan Omar Ali Saifuddin Mosque, Bandar Seri Begawan. The value is indicated in the corners.