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Glue marks?

Started by Fountainhead,

2 posts in this topic

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Scott_Schechter

Scott_Schechter

Posted
  • Administrator
Posted

Thanks for your question.

 

Are they faint yellow and in the upper left corner? If so, that's a mark that reacts to UV light. On our label, we use two different types of watermarks that respond to UV light. The mark in the upper left corner can be seen faint under visible light, while the other can be seen only under UV.

 

If you have access to a black light, I recommend taking a peak at an NGC label to reveal these security features.

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