PART VI. Striking Errors:
Brockages:
Partial Brockage:
Definition: A brockage is an incuse, mirror-image version of the design that is generated when a coin (or other struck piece of metal) is struck into a planchet or another coin. A partial brockage occurs when there is partial overlap between the two discs involved.
This 1980 cent has a partial brockage of the reverse design on its obverse face. A previously-struck coin overlapped the planchet represented by this cent. This coin was struck fully within the collar. The increased effective striking
pressure caused by the intrusive coin produced some “horizontal lipping”, as coin metal squeezed over the top of the fully-deployed collar. Many coins with partial brockages are struck out-of-collar (broadstruck).
pressure caused by the intrusive coin produced some “horizontal lipping”, as coin metal squeezed over the top of the fully-deployed collar. Many coins with partial brockages are struck out-of-collar (broadstruck).
