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Fold Over Strike: Outward Fold

Part VI: Striking Errors

Foldover Strikes:

Outward fold

Definition: Due to a misfeed or ejection mishap, a planchet or coin momentarily ends up in a vertical position, and is folded over by the impact of the hammer die.

Side view schematic of an outward fold. The rectangles represent the hammer and anvil dies respectively. The black line represents the planchet and the location where the fold begins to occur. A foldover strike formed in this fashion will have an open loop with equal-sized openings, a relatively small die-struck area that is equidistant from the ends of the loop, and two fused flaps of equal size.


Foldover strike on an earlier off-center strike. The direction of fold on this coin was outward.
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