LEARNTOGRADE

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What Is Paper Money Grading? The Hidden Science of Value

The 1–70 scale, the authentication ritual, and why a single fold can move a note from thousands to hundreds. The complete foundation for every other topic on this site.

More in this category

PMG vs PCGS: Which One Is Actually Better?

Same scale, completely different execution above grade 64. Where the standards diverge and a decision framework for which service to use on which notes.

Paper Money Grading Scale Basics

A beginner friendly mental model for the 0-70 scale and what actually moves the number.