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.
Coat of arms of Switzerland
Alternative shapes of the heraldic shield were also in frequent use, and still remain in use in spite of the 2017 legislation. 
A frequently seen shield shape is the "Iberian" or "curved" type, specifically used to mark Swiss embassies and border crossings, and also used on the five franks coin. 
Another frequently seen variant is a Renaissance-style articulated shield, shown as being held by the national personification Helvetia on the ½, 1 and 2 franks coins.