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Bag marks in no way mean that a coin is not mint state.In fact, even a coin graded Mint State-67 or higher could have Coloring acquired from the bag while a coin was stored.Abrasions which occur on coins that were shipped in mint bags.Most often this term applies to silver dollars, although virtually any coin can have bag marks.
These scratches are actually file marks, made at the mint in order to reduce the weight of a coin so that its metal value wouldn't exceed its face value. Because of the physics of minting, the fixed lower-die impression is slightly better struck than the upper-die impression. An offering of coins or other items for sale where the buyer must bid against other potential buyers with no set price.
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.
Date, mintmark, peripheral lettering, or other features sometimes are partially worn away.
On an About Good coin, only the main features of it are present.