PART V. Planchet Errors:

Alloy Errors:

Ragged Fissure

Definition: Abnormally brittle and stiff portions of the coin metal strip can develop tears and fissures from tensile stresses produced during rolling.  If a blanking die slices through one end of a fissure, the resulting blank will contain that fissure.  Fissures are also associated with the rough, untrimmed leading and trailing ends of the coin metal strip.

Most fissures have a ragged appearance.  In both appearance and causation, the error is closely related to ragged clips and ragged notches.

The 1966(P) Lincoln cent shown below was struck on a planchet that has a ragged fissure.