Karl Marx's face on a banknote? That can only be funny money. Marx himself was chronically broke so the value of this banknote is fitting.

The violet-coloured zero euro note, like a real banknote, is made of security paper and, at 135mm x 74mm, is slightly larger than a 20 euro note. Each note contains the following security features:

• Watermark
• Copper stripe
• Simultouch
• Hologram
• Transparent register
• Money printing security background
• UV-light fluorescent ink
• Individual serial number, each consisting of 10 characters (4 letters, 8 digits)