An extremely rare 17th century coin owned by Founding Father John Adams' family has sold for $ ... It weighs just 1.1 gram and has a silver value of just over $1 on today's market.

Find Out: These 11 Rare Coins Sold for Over $1 Million Explore More ... as cited by CoinValueLookup: 2007 John Adams (without edge lettering): This was one of the first Presidential coins to ...