Equatorial Guinea. Bank of Equatorial Guinea (Banco de Guinea Ecuatorial). 1979 Issues. 500 bipkwele Type 1979. Date: August 3, 1979. Dimensions: 128 x 70 mm. Watermark: Tomas Engono Nkogo. Material: Paper. Solid security thread. Printer: Fábrica Nacional de Moneda y Timbre, Madrid. Front and back: Polychrome printing predominantly black and green. Description of the front: Border frame with guilloche patterns. Portrait of Rey Uganda. Coat of arms at center with cotton tree on shield. 7-digit s/n in red. Texts in Spanish: Banco de Guinea Ecuatorial. Malabo, 3 de Agosto de 1979. Quinientos bipkwele. Signatures: El Gobernador (Governor), Patricio Eka Nguema Obomo and El Cajero General (Cashier), Victoriano Boncanca Bojeta. Description of the back: View of the Malabo beach with trees and sailboat. Texts in Spanish. Value in the corners.