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Regardless of the cause, carbon spots are often difficult, if not impossible, to remove without leaving pits in the coin's surface.
Slang term for a coin returned from a grading service in a plastic sleeve within a flip.
It is a non-profit organization, chartered by an Act of Congress in 1912. These came into use in the mid-nineteenth century and replaced wooden kegs.
Also refers to the quantity of coins of a particular denomination found in a bag (such as 5000 cents or 1000 silver dollars).
This term has both a positive and a negative context: In a positive sense, Proof planchets are burnished before they are struck.
The procedure was done originally by rubbing wet sand across the surfaces to impart a mirror-like finish.