History of Switzerland
Switzerland's most important exports during the war were precision machine tools, watches, jewel bearings (used in bombsights), electricity, and dairy products. During World War Two, the Swiss franc was the only remaining major freely convertible currency in the world, and both the Allies and the Germans sold large amounts of gold to the Swiss National Bank. Between 1940 and 1945, the German Reichsbank sold 1.3 billion francs worth of gold to Swiss Banks in exchange for Swiss francs and other foreign currency.
Austrian schilling
Although the euro became the official currency of Austria in 1999, euro coins and notes were not introduced until 2002. Old schilling denominated coins and notes were phased out from circulation because of the introduction of the euro by 28 February of that year. Schilling banknotes and coins which were valid at the time of the introduction of the euro will indefinitely remain exchangeable for euros at any branch of the Oesterreichische Nationalbank.