NGC has identified and confirmed that a counterfeit replica of its holder has been produced. At first appearance, the holder resembles the NGC holder and its respective brand marks. Upon inspection, variations in the holder, label and hologram make them easily discernible from authentic NGC-certified coins. This announcement includes diagnostic information to identify counterfeit holders.
The holder has been seen housing counterfeit dollar or foreign crown size coins. While the enclosed coins are also counterfeit, the label information matches the coin type enclosed. The label information is copied from actual NGC certification labels, and the certification information therefore will match the NGC database.
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Full story and diagnostics to identify counterfeit holders can be found here: Link