Do you own an old penny worth as much as a million dollars? ... The most valuable U.S. coin ever, a $20 gold piece, a 1933 "Double Eagle" coin, sold for $18.9 million at auction in 2021.

The most valuable U.S. coin ever, a $20 gold piece, a 1933 "Double Eagle" coin, ... "You'll see in that book there's no million-dollar cents." Go get your coins graded.