Question: one of the causes of the german hyperinflationary period that occurred after world war i was

title: Hyperinflation
text: By November 1922 , the value in gold of money in circulation had fallen from £ 300 million before World War I to £ 20 million . The Reichsbank responded by the unlimited printing of notes , thereby accelerating the devaluation of the mark . In his report to London , Lord D'Abernon wrote : `` In the whole course of history , no dog has ever run after its own tail with the speed of the Reichsbank . '' Germany went through its worst inflation in 1923 . In 1922 , the highest denomination was 50,000 Marks . By 1923 , the highest denomination was 100,000,000,000,000 ( 10 ) Marks . In December 1923 the exchange rate was 4,200,000,000,000 ( 4.2 × 10 ) Marks to 1 US dollar . In 1923 , the rate of inflation hit 3.25 × 10 percent per month ( prices double every two days ) . Beginning on 20 November 1923 , 1,000,000,000,000 old Marks were exchanged for 1 Rentenmark , so that 4.2 Rentenmarks were worth 1 US dollar , exactly the same rate the Mark had in 1914 . 

Answer: answer: The Reichsbank made unlimited printing of notes, thereby accelerating the devaluation of the mark. Then Germany went through its worst inflation in 1923.