The Rentenmark (German: [ˈʁɛntn̩maʁk] (listen); RM) was a currency issued on 15 October 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany, after ...
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the previously used "paper" Mark had become almost worthless. It was subdivided into 100 Rentenpfennig and was replaced in 1924 by the Reichsmark.