PMG certified notes

Printed Fold Errors on Federal Reserve Notes: When the Paper Folds During Printing and the Ink Covers the Crease

June 15, 2026 by

Printed fold errors rank among the most visually dramatic and mechanically fascinating mistakes the Bureau of Engraving and Printing has ever released into circulation. This guide breaks down exactly how these errors occur, what varieties collectors should know, and what genuine specimens are worth in today’s market.

Missing Face or Back Printing Errors: Blank Sided Notes and Their Extreme Rarity

June 15, 2026 by

Among the rarest and most dramatic error notes ever produced by the Bureau of Engraving and Printing, blank-sided currency represents a catastrophic failure in the multi-stage printing process. This guide breaks down exactly how these errors happen, which series and denominations command the highest prices, and what collectors need to know before buying or selling one.