It's a reverse (anvil) die cap. No more than two strikes were necessary to generate it.
Struck through grease. In Kennedy halves, grease deposits are often thicker opposite the eagle's breast. Hence the depression on the side of...
Since the fracture line is stepped and extends from one point on the rim to another point on the rim, it would be classified as a retained cud of...
Belief shouldn't enter into it. The weak but complete 5c image and the soft, blended overlap between 5c details and the 1c design clearly...
This is a genuine cent struck by a pair of counterfeit 5c dies.
Hard to say. Wrong stock errors, rolled-thin errors, and rolled-thick errors have seen a steep drop in prices over the last 10 years.
It's both a rare date and a rare mintmark for this sort of error. The vast majority of dime stock quarters hail from the Denver Mint.
Actually, it was struck through a thread.
The lead-off coin seems to have a case of machine doubling (push doubling subtype). It can generate multiple "shelves" along the edge of the...
As others have said, it was struck on a planchet derived from rolled-thin quarter dollar stock.
It the material lies above the level of the surrounding metal, it may well have been deposited after the coin left the Mint. Then again,...
Jefferson's face was flattened outside the Mint. Whether by abrasion or crushing, I cannot tell.
Absence of reeding in a coin that shows no expansion is a sure sign of post-strike damage.
Your photos are too blurred to make a determination. It appears as if your dime lacks reeding. If so, your "collar clash" is what's left of the...
This form of die damage appears on cents from 1917 to 1945. Often paired, they are assumed to be caused by contact with a pair of reciprocating...
The missing details on Lincoln's bust are entirely due to overzealous intentional die abrasion.
I've seen many examples of cents struck on planchets that have had their plating scraped off to a greater or lesser degree. I've see no evidence...
Use of the term "incomplete plating" is generally confined to cases of incomplete copper deposition. Your cent would be better described as a...
You need to distinguish incomplete plating from damaged plating. The 2019-D cent and the 2019 cent were struck on planchets that had part of...
It's a form of split plating doubling. I wrote about it many years ago in my Coin World column. Here is the relevant paragraph: "These tiny...
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