PART VI. Striking Errors:
Brockages:
Mid-stage and Late-stage Brockages
Definition: The raised design on the working face of a die cap that has been striking brockages becomes progressively more expanded and distorted. As a result, the brockages that it leaves on the planchets fed in beneath it become progressively more expanded. A brockage that shows a moderate degree of expansion is called a mid-stage brockage. A brockage that shows massive expansion is called a late-stage brockage.
This undated Liberty Head (Indian Head) cent shows a mid-stage brockage of the reverse design on its obverse face.
Images are courtesy of Heritage Auctions.
This undated Liberty nickel shows a late-stage brockage of the reverse design on its obverse face.
Images are courtesy of Heritage Auctions.