During the hyperinflation, ever higher denominations of banknotes were issued by the Reichsbank and other institutions (notably the Reichsbahn railway company). The Papiermark was produced and circulated in enormously large quantities. Before the war, the highest denomination was 1000-Mark, equivalent to approximately 50 British pounds or 238 US dollars. In early 1922, 10,000-Mark notes were introduced, followed by 100,000- and 1 million-Mark notes in February 1923. July 1923 saw notes up to 50 million-Mark, with 10 milliard (1010)-Mark notes introduced in September. The hyperinflation peaked in October 1923 and banknote denominations rose to 100 trillion (1014)-Mark. At the end of the hyperinflation, these notes were worth approximately £5 sterling or US$24.