Imagine buying a coffee and getting change that could change your life. That’s the buzz in the coin-collecting world right now: a 1964 Kennedy Half Dollar with a rare minting error and unique silver composition could be worth up to $5.9 million — and experts say it may still be out there in everyday circulation. … Continue reading Rare 1964 Kennedy Half Dollar Could Be Worth $5.9 Million — And Might Still Be in Circulation