Collection PL

United States 1950A — 10 Dollars Federal Reserve Note Chicago District Butterfly Fold Error (Friedberg 2011-G)

This 1950A 10 Dollars Federal Reserve Note from the Chicago District (Friedberg 2011-G, GB Block) displays a striking Butterfly Fold Error, one of the most visually dramatic mechanical mishaps encountered in modern U.S. currency production. During printing, a corner of the paper was unintentionally folded over, causing part of the note’s design to print on the folded flap and leaving an unprinted void once the fold was later unfolded. ... Read more →

United States 1950A — 20 Dollars Federal Reserve Note, Cleveland District, Misaligned Back Printing Error (Friedberg 2060-D), PMG 45 PPQ Extremely Fine

The Series 1950A 20 Dollars Federal Reserve Note from the Cleveland District, cataloged as Friedberg 2060-D, exhibits a documented Misaligned Back Printing Error. This production anomaly occurred during the back plate printing stage, when the reverse impression shifted relative to the front, creating visible displacement in the alignment of the reverse design elements. Misaligned back printing errors arise when the sheet positioning during the reverse pass deviates from its intended registration. ... Read more →