Invalid 500-krona banknote

Portrait obverse: Karl XI
Portrait reverse: Christopher Polhem

Measures: 82 x 150 millimetres
Colour: Red
Introduced: 2001
Banknote paper: Manufactured of cotton fibres that are not fluorescent, which is to say they do not emit any light under ultraviolet light (other types of paper may emit a bluish glow).
Banknote number: shows which year the note was printed. The first digit is the last figure of the printing year. The second and third digits show which decade the note was printed, according to a special system.