Grading Error Notes: How Printing Mistakes Interact with Condition Standards at PMG and PCGS
Error notes occupy a fascinating and sometimes confusing corner of currency collecting, where the rules of standard grading meet an entirely different set of valuation criteria. This guide breaks down exactly how PMG and PCGS Currency evaluate printing mistakes, what qualifies as a gradeable error versus a damaged note, and which specific error types command the highest premiums in today’s market.
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