Federal Republic of Germany. Deutsche Bundesbank. 1989-1999 Issues. 20 Deutsche Mark Type 1991. Front/back: Green and purple on multicolor underprint. Dimensions: 138 x 68 mm. Watermark: Annette von Droste-Hülshoff and 20. Front: German text. Prefix letters and the banknote number are printed in black and red. At right, portrait of Annette von Droste-Hülshoff (1797-1848). In background, buildings in Meersburg on lake Constance. Laurel sprig. Two variants of signatures printed in green at left under the watermark. Back: Bundesbank logo in green-red. Quill pen and tree symbolizing "The Jew' Beech" poem. Open book at right under the watermark. Windowed security thread with demetalized 20 DM. Printer: Giesecke & Devrient. Material: Paper. Replacement notes: Prefix with ZA.