PART VI. Striking Errors:

Struck Through Errors:

Struck Through Feeder Finger

Definition: A coin struck through a feeder finger will feature a very deep impression, often with vertical walls. The margins of the impression will be concave, straight, or angular.  A sharp angle will often mark the corner of a feeder finger.  The floor of the indentation will usually show a texture distinctly different from that left by a planchet, sometimes smooth, sometimes coarse.  A dark discoloration may be present in the floor of the impression.  Coins are often split or torn apart when struck through a feeder finger.

Note: Several specimens are shown below.

Below is a triple-struck nickel struck through the part of the feeder finger that cradles the planchet. The force of the impact nearly tore off the metal beneath it. It’s tenuously connected to the rest of the coin at one end. The loose flap was telescoped beneath the main part of the coin, probably when the coin was encapsulated.

Double-struck 2006 Isambard Brunell two pounds. This big bi-metallic split & tore as it was struck through a very large, malfunctioning feed finger.

Multi-struck 2007 Malaysian 20 sen struck through feeder finger.

This off-center cent was apparently struck through the side of a feeder finger.  The medial wall of the impression is vertical and the floor is very thin.