The Mint brings in coils of clad strip already cleaned by its suppliers. I don't know if they ever descale on both sides. I would assume one...
Die scratches arising from intentional die abrasion are largely confined to the field. However, they can show up in low relief areas, like the...
Wire brushes, emery sticks, and other abrasive tools are employed. Scratches vary in thickness from course to fine, pointing to the use of...
Incuse marks on planchets are more likely to survive the strike than raised marks. There are probably several sources for closely-spaced parallel...
A rotating descaling brush cleans the clad and core strip before they enter the bonding mill. Usually this is done only on the side intended to...
These may be roller marks or marks from a rotating descaling brush.
The coin is not a broadstrike, so if its diameter is greater than that of a normal cent, it has been altered outside the Mint. It is impossible...
I have no idea what ANACS' statement means.
It could be struck on an incompletely plated planchet. A small percentage do show some sort of bulls-eye pattern. Only an examination under a...
It's not an incomplete clip, that's for certain. Is the curved line actually incuse? If not, then it's probably just a stain.
It's not a die cap, although it may have been struck more than once. It's a partial collar error with a full, almost centered, first-strike...
It appears to have started out as a genuine error cent, with a cud and perhaps a taper. Unfortunately, someone dipped it in acid afterward,...
If it's pure nickel then it would be attracted to a magnet.
The US Mint did not produce any coins or planchets for Ecuador in 1966. The last year they made anything for that country was 1947. If it is a...
Judging from similar specimens I've seen, the lines are in the plastic, not on the coin.
The doubling is so slight that it's hard to tell from here whether it's a doubled die or machine doubling. A close exmination under microscope is...
The clad layers were dissolved in acid.
The coin shows great promise. If it slams into a magnet, then it's probably pure, elemental nickel. If it is not attracted to a magnet, then it...
Yes, grease can leave an impression on a succession of coins. The impressions can be identical or they can change in size and shape as the grease...
It's most likely struck through "grease". The term "grease" is a catchall term for any kind of gunk that accumulates on the die face. The...
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