0 Euro - Casino de Monte-Carlo

The 0 Euro souvenir note program, administered by the Union Européenne des Wallons de l'Histoire (UEWH) and distributed through tourist venues across Europe, has been running since 2015. These pieces are printed by Oberthur Fiduciaire to the same security standards as circulating currency — genuine intaglio printing, security thread, watermark — which is precisely why the European Central Bank was consulted before the series launched. The denomination of zero was the legal workaround: no face value, no conflict with euro issuance monopoly.

The Casino de Monte-Carlo edition is notable for where it is sold rather than where it is issued — Monaco itself uses the euro under a monetary agreement with the EU but has no central bank and mints no paper currency of its own.