Cutting Errors: Offset Cuts, Insufficient Margins, and the Rarest Butterfly Errors on U.S. Currency
Cutting errors rank among the most visually dramatic mistakes in U.S. currency production, from minor margin shifts to the jaw-dropping butterfly fold that creates a note with two faces. This guide breaks down every major cutting error type, explains how they happen on the BEP’s rotary cutting equipment, and gives collectors the specific knowledge needed to identify, grade, and value these spectacular pieces.
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