" In 1922, the inflation turned to hyperinflation as the Reichsbank gave up trying to control the situation and printed money frantically to meet the demands of union and government workers. A single U.S. dollar became so valuable thatAmerican visitors could not spend it because merchants could not locate the millions of marks needed to make change. Diners offered to pay for meals in advance because the price would be vastly higher by the time they finished eating. "

― James Rickards , Currency Wars: The Making of the Next Global Crisis