Some people collect "Devil" bills and are willing to pay above face, just like some collect "Lucky" bills with 777 serial numbers. The Bureau of Engraving sells "Lucky" serial number bills at a premium.
666 in a US $1 bill... George Washington is the Devil??? Currency from 1666 must have caused a panic somewhere...
@zachattack There have been other threads posted about this number.. Totally silly In my opinion https://www.cointalk.com/threads/banknotes-with-666-in-the-serial-number.15642/
Plus the four 6s referring to Atlanta (Federal Reserve district). Will not be worth anything beyond face but is still nice. Christian