0 Euro - Nossa Senhora do Sameiro Braga

The 0 Euro souvenir note program, administered under license by EuroSouvenir and printed by Oberthur Fiduciaire, occupies a legal grey zone that is genuinely interesting: these notes are produced to official euro banknote specifications and printed on security paper by an authorized currency printer, yet they carry no monetary value and are not legal tender. The European Central Bank has explicitly permitted their production, reasoning that zero-denomination instruments cannot be counterfeited in any meaningful sense.

Nossa Senhora do Sameiro, the Marian shrine outside Braga, draws a consistent collector market in northern Portugal, which is why regional sites like this generate multiple edition runs — the 2020–2023 date range almost certainly reflects sequential edition numbering rather than continuous print runs.