0 Euro - Biarritz Cité de l'océan

The zero-euro souvenir note program, administered by the UEHA under license from the European Central Bank, launched commercially in 2015 and quickly became one of the more successful novelty philatelic concepts in recent European publishing history. Oberthur prints the series using genuine banknote-quality security paper with embedded features — UV printing, microtext, a holographic strip — essentially identical in specification to circulating euro notes, which is the entire point of the exercise.

The Biarritz Cité de l'Océan issue is one of several hundred tourist-site editions. No monetary value, no redemption, no central bank obligation — but the security printing is entirely real.