A Barr 1963 B series note is a banknote that bears the signature of Joseph Barr, the Under Secretary of the United States Treasury during President Lyndon Johnson’s administration.
When the United States printed the 1968 $1 bills, Barr’s signature was included. However, what makes these notes truly unique is that Joseph Barr served as the Secretary of the Treasury for only 28 days, making this note a rare and limited edition.