error currency values

Shifted Face Printings on Small-Size Notes: How Far Is Too Far and What Collectors Pay

June 15, 2026June 15, 2026 by

A shifted face printing can transform an ordinary small-size note into a dramatic error worth hundreds or even thousands of dollars, but understanding the spectrum from minor misalignment to spectacular off-center shifts is essential before you spend a dime. This guide breaks down exactly how these errors occur, how graders and dealers measure them, and what the current market actually pays across different denominations and series.

Mismatched District Letter and Seal on Series 1963 Federal Reserve Notes: The Mechanics of How This Error Occurs

June 15, 2026 by

The mismatched district letter and seal error on Series 1963 Federal Reserve Notes stands among the most technically fascinating and collectible printing mistakes in modern US currency history. Understanding exactly how these errors occur, which combinations exist, and what to look for can transform your approach to searching circulation finds and auction lots.

Mismatched Serial Number Errors: When the Left and Right Numbers Don’t Match and Why It’s Rarer Than You Think

June 15, 2026 by

A mismatched serial number error is one of the most visually dramatic and technically fascinating mistakes in US currency production, yet most collectors have never seen one in person. This guide breaks down exactly how these errors occur, what makes them so elusive, and what to look for when evaluating one for your collection.