Netherlands. 1966-1973 Issues. De Nederlandsche Bank. Printer: Johan Enschedé en Zonen (JEZ), Haarlem. Designer: RDE "Ootje" Oxenaar (1929–2017). Two circular identifiers for the visually impaired. Dimensions: 154 x 76 mm. Date: 15-05-1970. No security thread. Material: paper. Texts in Dutch. Description of the front: Front and back printing predominantly dark brown on multicolor underprint. Portrait of one of the most skilled admirals in Dutch history Michiel Adriaensz de Ruyter (1607-1676) at right. Value 100 in brown at 2 corners. Signatures: Secretaris, De Bijll Nachenius / President, Zijlstra. Description of the back: Orange, purple and dark brown. Compass-card or rhumbcard design at center. Value 100 in brown at 2 corners. Watermark at right and the text of Law at left (Art. 208). Serial banknote number is printed in black and repeated two time. The specimen is known overprinted in red diagonally front and reverse in open letters "SPECIMEN" with specimen handwritten number "000" on front, series 0000. Other reference: Soetens/Grolle/Koeze 16,2.