Emergency currency, lot from 7 books: Pick, A. & Siemsen, C., the German language emergency currency, loose cash bank notes 1916-1922 IV. Part: series note. Munich 1975; Pick, A., paper money lexicon, 3. Revised edition. Rain baptism, 1992; Grabowski, H. L, German emergency currency. Emergency currency the specific kind, B. 9 ( cash notes from fabric, leather and other unusual materials) and B. 10. ( the banknotes and provisional cash notes of the German countries, provinces and districts), Rain baptism 2005 / 2006; fiddler, A., German emergency currency B. 3. The German language Large need money 1918-1921, catalogue of all provisional cash notes in the nominal value of 1 to 100 Mark, Rain baptism 2003; Keller, A., German emergency currency, B. 7, the emergency currency of the German inflation 1923 (Aachen Lindenberg), 2004 (Reprint) and B. 8, the emergency currency of the German inflation 1923 (Lindenthal Zwota), 2004 (Reprint). ;