I have a plastic bank shaped like a Coca-Cola bottle where all my change goes at the end of the day. I'm careful to hold back pre-1982 US pennies for the copper, but realize that my wife and family aren't as careful. So, when the bottle became full two weeks ago, I was counting up the coins and putting them in tubes to take to the bank. I examined each penny's date and found quite a few that then fell victim to Gresham's Law. Imagine my surprise though, when I spotted a quarter that looked different. Sure enough, it was a 1944 US quarter...90% silver! I can't believe they still show up in change.