Treasury bills are now issued only in electronic form, though they used to be paper bills.

Getting rid of paper bills can make a big difference.

The back side of the thin paper bills was blank.

Bundles of paper bills dropped like stones to the floor.

In these cases, online customers who want to continue receiving paper bills must request them.

Some companies, like America Online, simply refuse to offer paper bills.

They printed their own money-$140 million in paper bills was in circulation by 1836.

The paper bills issued by the colonies were known as "bills of credit".

There are paper bills that are worth 1, 2, 5, 10, 20, 50, and 100 dollars.

All coins and paper bills have the faces of famous Americans on the front side.