This 2007 John Adams $1 coin is a unique find with a double edge lettering and an inverted mint error. The coin has not been circulated and has been graded MS 64 by NGC. It was minted in Philadelphia and is a part of the Presidential (2007-Now) series of US coins. The certification number for this coin is 3117771-057. The denomination of this coin is $1 and it features John Adams, the second President of the United States. It is a great addition to any coin collection and a must-have for avid coin collectors. Don't miss out on the opportunity to own this unique coin.