NGC's New Hologram with QR Codes Combats Counterfeiting
Numismatic Guaranty Company (NGC) is introducing a new high-security hologram as part of its comprehensive efforts to combat counterfeiting and create a safer marketplace for NGC-certified coins, tokens and medals. Among the innovative hologram enhancements are a QR code and a numerical security code that are unique to the specific encapsulated collectible, making it extremely
Source: coinnews.net