Modern Currency Errors

Third Printing Errors: Misaligned Serial Numbers and Seals on Modern Federal Reserve Notes

June 15, 2026 by

When the Bureau of Engraving and Printing’s third printing stage goes wrong, the result is some of the most visually dramatic and collectible error currency in modern numismatics. This guide breaks down exactly how misaligned serial number and seal errors occur, which specific series to hunt for, and what these striking mistakes are worth in today’s market.

Federal Reserve Notes Series 2013 $100: The Creasing Crisis That Halted Production and What It Means for Collectors Today

June 15, 2026 by

In 2010, the Bureau of Engraving and Printing unveiled a dramatically redesigned $100 note, only to discover a manufacturing defect that would delay its release by three years and produce some of the most scrutinized currency in modern American history. Understanding the creasing problem, the production halt, and the resulting series variations gives collectors a fascinating window into how error notes and transitional issues are born.