Authenticity & Verification

The Science of Security: How to Verify Authentic USPS Forever® Stamps

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The Micro-Detail Revolution: For the serious collector, authenticity isn’t a guess—it’s a measurement. Modern counterfeit stamps have become sophisticated, but they fail under microscopic scrutiny.

Key Indicators to Check:

  1. UV Phosphor Tagging: Genuine USPS stamps emit a specific “glow” under short-wave ultraviolet light. Counterfeits often glow too brightly or not at all.
  2. Intaglio Printing: Real stamps use a specialized ink-layering process that creates a physical texture you can feel with a precision tong.
  3. Perforation Precision: Authentic sheets use standardized die-cutting. Uneven or fuzzy edges are a 99% indicator of a fake.

At AuthStamps, our “Vault Standard™” process ensures every roll passes these forensic tests before acquisition.

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