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Series title: "Adventures of Criminalistics".
Episode title: "Duplicate"
A depiction of the Portuguese Banknote Crisis of 1925, when a gang of criminals lead by 28-year-old Alves dos Reis produced forged documents which persuaded the English printers of Portuguese banknotes to produce duplicate 500-escudo notes to a value equivalent to nearly 1% of the country's GDP.
In the medium term this caused the collapse of the first Portuguese Republic and the introduction of the rightwing dictatorship which lasted until 1974.
See also the 2000 47-part Portuguese tv series "Alves dos Reis", and the 1974 Italian miniseries "Accadde a Lisbona" which also relate the story of this crisis.