“The newly created Rentenmark was introduced alongside the old Papiermark on 15 November. Because of the economic crisis in Germany after the First World War, t

“The newly created Rentenmark was introduced alongside the old Papiermark on 15 November. Because of the economic crisis in Germany after the First World War, there was no gold available to back the currency. Luther thus used Helfferich's idea of a currency backed by real goods. The new currency was backed by the land used for agriculture and business. This was mortgaged…” https://en.wikipedia.org/wiki/Rentenmark https://en.wikipedia.org/wiki/Rentenmark