Schloss Burg an der Wupper, the medieval castle above Solingen, became the subject of this Oberthur-printed souvenir note as part of the Euro Souvenir program — a private-sector collector series that deliberately mimics official banknote production using genuine security printing techniques, including holographic strips, to create legal-tender-adjacent novelties that are nonetheless entirely outside any central bank mandate. Felix is one of several character-linked variants issued for the same site, a marketing device that drives repeat purchases from visitors who might otherwise buy only one.
Schloss Burg an der Wupper, the medieval castle above Solingen, became the subject of this Oberthur-printed souvenir note as part of the Euro Souvenir program — a private-sector collector series that deliberately mimics official banknote production using genuine security printing techniques, including holographic strips, to create legal-tender-adjacent novelties that are nonetheless entirely outside any central bank mandate. Felix is one of several character-linked variants issued for the same site, a marketing device that drives repeat purchases from visitors who might otherwise buy only one.