You cling to the older ways ? You sure ? I ask because cleaning coins is about as old it gets. For centuries collectors all over the world cleaned...
Doctored and restored are completely different things. And there are many different types of doctoring, and many different types of restoration....
Yes the '71 cent has mechanical doubling. As for the '47, 2 possibilities IMO. 1 - it is deliberate damage done by a person long after the coin...
As I mentioned above, there is a very big difference between airtight and watertight. It is much, much easier to make something watertight than it...
Based on your comments I don't think you understand exactly what the "sniff test" does, and does not do. 'Course, it seems a whole lot of other...
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