About #23 - 10 mark Type 1964
German Democratic Republic. German Note-Issuing Bank. 1964 Issues. Date: 01.08.1964. Dimensions: 139 x 67 mm. Watermark: Hammer and compass. Material: Paper. No security thread. Printer: VEB Wertpapierdruckerei, Leipzig. Multicolored front and back printing, predominantly green and blue. Description of the front: Frame and background composed of guilloche patterns. Texts in German. Portrait of the German philosopher and historian Friedrich von Schiller (1759-1805). Letter and numbering in red. Value "ZENH MARK" in a rose window on the left with the coat of arms of Germany. No signature. Description of the back: Texts in German. Coat of arms of Germany. Frame and background composed of guilloche patterns. Value in letters "ZEHN MARK" below a view of the Carl Zeiss company buildings in Jena. Replacement note with prefix X, Y or Z.