Mississippi State Quarter Mint Error coin MS66

Mississippi State Quarter Mint Error coin MS66 Each year, the U.S. Mint produces billions of coins.  The vast majority are struckcorrectly andentercirculation or end up in collectors hands.  In order to leavethe U.S. Mint facilities, thecoins mustpass through a series of quality controlcheckpoints. If a coin is found to be struckwith anerror in thedesign, or if the coining machinery malfunctions and produces misshapenor partially-struckcoins, allof the coins in question are destroyed. However, each year a very few rogue coins manage to escape the eyes ofinspectors and areaccidentallyreleased into circulation. These error coinsare highly sought after for their rarityas well as their unusualnature.  Due to their rarity, error coins can be expensive.  These mint error coins have an Improperly Annealed planchet. This happenswhen thecoins stay for toolong in the annealing furnace. In order to make thecoins soft before theyare struck and to protect thecoin dies, coins are heated inan annealing furnace. If the coins staytoo long in the furnace they overheatandchange color. These Statehood quarters have adistinctive dark but fully lustrous color. This uniquecolor makes them easy to identify andvery few get past thequality control inspectors. These are interestingmint errors and make agreataddition to any coin collection.