What you have is severe die deterioration accompanied by at least one die chip. It's the sort of deterioration that plagues the America The...
Although the coin is in bad shape, it does appear to have been struck through a little bit of "grease".
It's a die break, specifically a "cud". The outer margin of the die broke off, leaving a raised blemish on the coin.
The nickel is a cupped off-center strike. You can alternatively describe it as an off-center strike combined with a stiff collar error. The...
It's more off-center than most. I'd guess it'd bring at least $50 on eBay.
I haven't heard of a clamp being using, but I suppose it's possible. I've seen several cases of incuse roller lines (at least I presume they're...
Nice example of the kind of streaks I wrote about.
Just the writer (me).
In my opinion, these are not improper alloy mix errors. I strongly suspect they are roller marks. See this article for more information:...
It could also conceivably be a Panama half balboa planchet. These were minted on the same silver-clad planchets that the half dollars of previous...
It's not an error and it's not post-strike damage. The planchet was strongly upset and there was a well-developed bevel connecting the apex of...
Maybe 25c.
This is not grease-mold doubling. The extra hairline above Lincoln's head is an example of split plating doubling. The doubling of the 9 and...
Off-center with an "indent" (indentation from a planchet).
If the ring is incuse and affects both the field and design, it's a scratch from a crimper on a coin-wrapping machine.
Excessive weight in a copper-plated zinc cent could be due to rolled-thick zinc stock or excessively thick copper plating.
This is not a lamination error. As I said, this is a brockage from a struck fragment. This is a well-known error type.
It is an incuse, mirror-image version of Abe Lincoln's head. Which is what you'd expect of such an error.
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