@CNN: Three of the rarest known US paper bills in existence, dating back to the 19th century, are expected to fetch up to $8 million at auction https://t.co/mwUsjbnnwn https://t.co/qsvp9wAMwj

@CNN: Three of the rarest known US paper bills in existence, dating back to the 19th century, are expected to fetch up to $8 million at auction https://t.co/mwUsjbnnwn https://t.co/qsvp9wAMwj