German Democratic Republic. German Note-Issuing Bank. 1955 Issues. Date: 13.10.1957. Dimensions: 162 x 82 mm. Watermark: Thorn points pattern. Material: Paper. No security thread. Printer: VEB Wertpapierdruckerei, Leipzig. Multicolored front and back printing, predominantly dark blue and orange. Description of the front: Frame and background composed of guilloche patterns. Texts in German. Letter and numbering in red. Value "20" in the corners and in a decorated rosette on the right. No signature. Description of the back: Texts in German. Frame and background composed of guilloche patterns. Value in letters "ZWANZIG" in the center and the value "20" in the corners. Replacement note with Y or Z prefix.