The Swedish krona was the ninth-most traded currency in the world by value in April 2016.
A more secure version with the same portrait was introduced in 2001 and became invalid after 30 June 2017.
Due to metal shortages during , iron replaced bronze between 1917 and 1919.
On 15 March 2006, the Riksbank introduced a new, more secure 1,000-krona banknote with the same portrait and the Riksbank became the first central bank in the world to use the security feature of MOTION a moving image in the striped band on the new 1,000-krona banknote.