This coin was damaged after the strike. It's not an error at all.
It's an unusual form of die deterioration called "peripheral die expansion and erosion". It seems restricted to 1982 cents. Many die pairs are...
You'll notice that the surface of the coin (#76) is warped below OF AMERICA. This is another clear sign of alteration.
My article on this coin and others like it will appear tomorrow in the online edition of Coin World (5/11).
The 1955-D cent was altered outside the Mint. It was clearly struck in-collar and yet is out-of-round. The effect on the obverse cannot be the...
The fang-like, struck-in pieces of metal are classic rim burrs -- a form of pre-strike planchet damage. They have nothing to do with blanking...
As to my reasoning, the "blobby" doubling surrounding the affected die elements is unmistakable. No other form of doubing has this appearance. A...
The 1959-D cent that begins this thread suffers from staining and possible surface contamination. It's not an error.
The imperfection on the head is a bi-level die crack. It's one of many "cracked skull" Lincolns from the 1950s.
This is 100% die deterioration doubling.
This week's Coin World features an update on this phenomenon. A fourth die pair is now associated with this rotating collar chip and the pattern...
Here's another reason why this hardened die fill might stand above the level of the surrounding, unobstructed die-struck design. If the...
You are correct that the same kind of hardened black crud found embedded in the 1959-D and 1970-D cents is the same material responsible for...
This does appear to be a struck through grease error in which some of the "grease" has been retained. I do find it odd that much of the grease...
I suspect it would bring between $40 and $50 on eBay. That's mainly because the smaller off-center strike is so tiny.
#53 is a saddle strike on a previously-struck cent (a "saddle/triple strike"). The larger of the two off-center strikes has a chain-struck edge,...
These latest photos clear up any remaining doubts -- this is an elliptical clip. The unstruck edges on either side of the short axis of the...
The 2 ore coin shows a significant amount of horizontal lipping, which is characteristic of aligned partial brockages generated by partial die caps.
I've seen longer ones, some equal to or surpassing 180 arc degrees (my memory is too hazy to be more precise). All of them were on cents, for...
Quite a few overweight (3.3 - 3.4 grams), "brass" cents (cents enriched in tin and/or zinc) appeared in 1941 and a few in 1942. Their...
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