The GreatCollections Coin and Paper Money Glossary
This is a popular resource that explains hundreds of coin related terms, as well as terms relating to our coin auctions. Of course, if you have questions about anything, please do not hesitate to contact us.
Artificial Toning (Questionable Color)
Artificial toning involves intentionally altering the surface color of a coin to mimic the natural aging process, often to enhance its aesthetic appeal or market value, but it can be controversial among collectors and graders and might render a coin ungradable and diminish its value.
X