I wouldn't be so quick to dismiss this one. The photograph of the edge is too poor to say anything about abnormalities in the exposure of the...
It's not as simple as "post-mint damage". My assumption is that this is a uniface strike by a fake obverse 10c die. The 10c strike shows a...
I agree with Conder101.
I've seen many coins crossed with raised lines similar to these. In all cases they were caused by dragging a thin, sharp blade across the coin at...
Acid sometimes exposes the "grain" of the coin, a pattern estabished during rolling out of the coin metal strip.
As others have said, this is an acid job.
This is not a dryer coin, either. In a dryer coin, the edge will be smoothly convex, and the interior design pummeled into mush.
BJ Neff is the gatekeeper as far as new listings are concerned. He can be reached at maddieclashes@aol.com.
Lucky token (encased) coins have an edge that is concave in vertical cross-section. This edge bulges out. So it's some other form of...
Minor die scrapes from a feeder finger.
The reeding was erased and the edge deformed outside the mint.
The term "capped die" or more correctly "capped die strike" is non-specific as many different designs and effects are associated with capped die...
Your dime is simply scratched up. The fact that scratches appear on top of "Mercury's" bust is all the evidence you need that this is the case.
I examined the Indiana quarter that was the subject of the Errorscope article. It has severe pre-strike damage.
As others have said, this is zinc rot. It's not a mint error.
All I see are stains.
Try this article: http://www.coinworld.com/insights/different-causes-of-stripes-on-coins-are-not-fully-understood.html
The four coins depicted above are a mixture of die caps and capped die strikes. The former are considerably rarer and more valuable than the latter.
As others have said, this is a "squeeze job" (a.k.a., vise job, hammer job, smash job, press job).
Machine doubling, without a doubt.
Separate names with a comma.
