Invalid 50-krona banknote

Measures: 77 x 120 millimetres
Colour: Yellow
Introduced: 2006
Printed: 2006-2011
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.