This article is from the Paper Money Collecting FAQ, by Bruce Giese firstname.lastname@example.org with numerous contributions by others.
This single note probably draws more questions than any other
that comes to mind, although there is still an amazingly large part
of the general population of this country that still doesn't
know that "In God We Trust" hasn't "always" appeared on our paper
money. Joseph W. Barr served as Treasurer for one month in 1968-1969,
his signature appearing only on the 1963-B series of $1 notes. However
some 484 million notes were printed with his signature so they are
not likely to become scarce in our lifetime. There were 471,040,000
1963-B notes printed with his signature. In addition there were star
notes - 3,680,000 for New York, 3,040,000 for Richmond, 2,400,000 for
Chicago and 3,040,000 for San Francisco. Millions of the notes are
being hoarded by non-collectors acting on rumors, and in today's
world they are losing money every day they hold onto one of these
notes. Uncirculated notes might bring you a slight premium - if you
can find a buyer.