Serial Number Ink Smear Errors on Small-Size Notes: When Wet Overprint Ink Drags and Creates Streaked Digit Strings
Serial number ink smear errors rank among the most visually dramatic overprint mistakes in small-size U.S. currency, yet many collectors struggle to distinguish a genuine drag smear from a post-printing accident. This guide breaks down the mechanics, authentication markers, major known examples, and current collector values for this fascinating error category.
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