PART VI. Striking Errors:
Brockages:
Aligned partial brockages:
From elliptical strike clip
Definition: It is possible for an elliptical clip blank to enter the striking chamber and land in such a way that one side of the ellipse nestles against the collar. Once it is struck, this elliptical clip blank can adhere to the hammer die or remain in place on the anvil die. It will then create an aligned brockage on the next planchet to be fed into the striking chamber.
The Lincoln cent below shows a possible example of an aligned brockage caused by an elliptical clip cent or an elliptical strike clip cent. The case is complicated by the fact that the coin was also struck by a late-stage die cap. The obverse (hammer) die was covered by a late-stage die cap that still had a little bit of the Memorial design left on it. Some faint incuse columns of the Memorial to the left of the aligned brockage can be seen. One of three scenarios
transpired to create that aligned brockage:
Scenario 1: An off-center planchet was struck by the capped die, adhered to the bottom (reverse) face of the die cap, and was struck into the next planchet (this cent).
Scenario 2. An elliptical clip blank entered the striking chamber, nestled against the NE quadrant of the collar, and was struck. It then adhered to the bottom of the die cap and was struck into the planchet that became this cent.
Scenario 3. An off-center planchet was sheared in two between the capped hammer die and the collar. The resulting elliptical strike clip adhered to the bottom of the cap and was then struck into the planchet that became this cent.
