Sorry but it's just damage. The mm took a hit and the mark on the neck is a bag mark where the edge of another coin hit it
Don't be surprised if your local shop has no idea what a Rockwell test mark is. Error coins are a specialized area and many dealers don't have...
It's flat and shelf-like, so you're right, it's machine doubling
Sorry, but it looks plated. Weigh it using Jim's instructions in post #3. There are multitudes of plated coins for every authentic example
I don't know of any sites but the following book will help Munzen aus Porzellan und Ton by Karl Schuch [ATTACH]
From a Metallurgy/Materials Science standpoint, I could never come to grips with a Rockwell Test Mark being visible after striking. Your...
Watch out for those crafty chemistry guys ;)
Sorry, but nothing looks like an error. As the other posts said, worth $1.25
If you think it's the good one, google 1969-S Doubled die and look at the images from places like PCGSfacts or Heritage auctions Hint, you don't...
I think the suggestion was for you to take a stab at trying to figure out what your next error coin may be. The group can offer you feedback on...
It could also be lacquered/Shellacked. Years ago, it wasn't uncommon to coat copper coins to keep them from discoloring. This could be the cause...
@Danny247 Read and bookmark these for starters. It might not make sense at first, but it will in time. http://www.error-ref.com/...
Sorry, but it's environmental damage. Acetone doesn't do anything when there is a chemical change to the surface. I'm afraid anything you try...
Actually, it is a true error. It's known as a filled die. However it really isn't worth more than face value
Based on your pics, the area in question looks recessed into the field. There also may be some raised metal on the top edge. This is the...
Sorry, but your coin suffered environmental damage after it left the mint. It is not an error
Is the distorted area raised or indented?
You can take the opinion of experienced and knowledgeable collectors telling you it's damage, or spend $50+ and send it to a TPG for their...
If you really think it's an error, spend the $50+ and send it off to a TPG. We are just offering opinions based on experience and knowledge. Your...
The lady reached in her pocket and very quickly said she was missing a one hundred dollar bill. If she was just throwing out a guess then she was...
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