SmokinJoe, what type of solution did you use?
This 1964 cent was immersed in acid (or some other corrosive solution) for a prolonged period. It is not an error.
The most likely explanation is that the spacing between the lettering die and the spinning impeller was closer than in your comparison specimens....
While I can't comment on the anomalous specific gravity results, the coin has clearly been chemically eroded. The uniformly mushy design and the...
Slight variability in the width of the stripes on the OP's coin are of no relevance, and the small lamination flap on Kentucky's coin is simply a...
Kentucky's image does show a retained lamination peel. It's the only cent I've encountered with purported roller stains that is associated with a...
Since it's merely a stain, there's no reason why the lines should be raised or incuse. Also, any microscopic deviation in height could be...
I am in full agreement with those who have diagnosed the OP's coin as having roller marks (roller stains). This effect is quite common in...
As far as I'm concerned all Rockwell planchet test marks are dubious, including the 1971-S cent whose image was reproduced here. That page on...
As most others have concluded, this is an example of intentional die abrasion.
"Incomplete planchet" is also a flawed term in that it's terribly non-specific. There are many ways for a planchet to be incomplete -- curved...
Paddyman98 is correct. This is a formerly encased cent. An edge that resembles a bicycle tire rim is a dead giveaway.
I've seen many similar alterations over the years. I'm not sure what mechanical device is used or whether it's hand-cranked or motor-driven.
Parallel to the face of the coin. Sort of like the upset mill works -- pressure is applied to the edge of the coin as it rolls within the device.
It wasn't spooned. There are no percussion marks. But it was altered outside the Mint. It was rolled and squeezed in the horizontal plane by...
No. PCGS as well as the other grading services label coins that are known or suspected to be intentional errors as errors. Whether it's a wise...
These are not "cent stock". Such an error would be impossible as cent stock is raw zinc, and any blank punched from it will lack copper plating....
This is an uncentered broadstrike in which there was slight contact with the collar as the coin expanded. It's not enough to be considered a...
I haven't yet encountered a retained interior die break in the field. All those I've seen appear within the design.
Both the 1964-D and 1961-D nickels appear genuine, pending verification through microscopic examination. Joe Cronin's 1964 nickel is a grossly...
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