0 Euro - Museum aan de Ijzer Diksmuide

The "0 euro" souvenir note program, administered by EuroSouvenir and printed by Oberthur Fiduciaire, occupies a curious legal niche: these notes are officially authorized by the European Central Bank to bear euro design conventions, yet carry no monetary value and are exempt from counterfeiting law. Oberthur produces them to genuine banknote specification — security paper, holograms, intaglio — which is precisely the point. The collectibility depends entirely on the authenticity of the manufacturing process.

The Museum aan de IJzer in Diksmuide sits on one of the most contested stretches of the Western Front, where the Yser River marked the furthest Belgian defensive line held throughout the entirety of World War One.