Aruba. Central Bank of Aruba (Banco Central di Aruba). 1990 Issues. Design and engraving: Evelino Fingal. Date: 01.01.1990. Dimensions: 147 x 67 mm. Watermark: stylized Divi-divi (watapona) tree. Material: paper. No security thread. Printer: Johan Enschedé & Zonen (JEZ), Haarlem, Netherlands. Front and back printing in green and tan. Description of the front: in the center, a Colombian four-eyed frog (Dori-Pleurodema brachyops) on a background of geometric patterns. Value of 100 florin in the corners. Signature combinations in brown with De Director and De President: Johannes H. G. Driessen / Emile den Dunnen. Description of the back: texts in Dutch. Geometric patterns of pre-Columbian art from Aruba. Value of 100 florin in the corners. Numbering in black.