The Sicpa Oasis validator system (bullion protect) is pictured on one kilogram bar of gold at Swiss refiner Metalor in Marin near Neuchatel, Switzerland July 5, 2019. Picture taken July 5, 2019.      To match Special Report GOLD-SWISS/FAKES     REUTERS/Denis Balibouse
Major Swiss gold refineries, such as Metalor, are using technology to verify whether the logos stamped on their bars are real. Photo: Reuters

Real gold bars with fake stamps are making it on to the global market

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