United States 1993 - 20 Dollars Federal Reserve Note Chicago District Printed Tear Error (Friedberg 2080-G)
Printed tear errors like this one reveal the physical realities of the BEP’s high-speed production process. During the early 1990s, sheets were stacked and advanced through mechanical feeders at roughly 10,000 impressions per hour. A misfeed, suction failure, or improperly aligned sheet edge could cause a corner to fold under or tear. Because each sheet underwent multiple print passes-back, face, and overprint-a single fold could be inked multiple times on different planes of paper, creating the layered and shadowed voids now visible. Read more →