Yes, it's die deterioration doubling.
One possiblity is that this is a piece of a broach. A broach is a ridged cylinder that, according to Arnie Margolis, is forced into an unfinished...
Actually, I may have been mistaken regarding the identity of the foreign object. Notice that the reeds on a quarter consist of relatively broad...
It's not machine doubling. It appears to be a form of die deterioration doubling that commonly develops on zinc cents, especially around the date...
Great find. This appears to be die dent from a fragment of a broken collar. Naturally, this will appear raised on the coin. This is the second...
This is not a "filled die" error. Were that the case, the mintmark would be faint. Instead, this is either a case of die deterioration, a...
This coin appears to have been altered outside the Mint. How about a photo of the entire obverse and reverse face?
It does appear to be a genuine, in-collar, flipover double strike. As a bonus, you have nice preservation of the first strike the form of a...
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I strongly suspect this is post-strike damage. The affected letters look puffy or flattened. The pattern of distortion is like nothing I've seen...
That's my understanding.
I suppose that the plating is fragile and would be disrupted during the upsetting process.
The planchet is plated after going through the upset mill. So a planchet that breaks apart after being struck will show exposed zinc. So will a...
Yes, those are also disturbing features.
Yes, this is a "cut-and-tear" texture that would be consistent with a genuine blank or an incomplete clip that broke apart after the strike....
I'm still undecided. The rough edge suggests exposure of broken metal crystallites and a natural break. On the other hand, I don't like the...
There are no legitimate incomplete clips known among copper-plated zinc Lincoln cents. Therefore, it would seem unlikely that this error could...
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The obverse has been partly ground off.
It could represent incipient development of a retained interior die break. In other words, a zone of collapsing metal that is cracking around its...
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