Welcome to the exciting world of paper money collecting -- especially one dollar bills. The popularity of collecting paper money has quite surged in recent years. This is a U.S. one dollar paper bill - Series 1963-B Federal Reserve Note-----BARR--- Green Star . It is "G" block. Number G52971156. Green treasury seal, green serial numbers . This has the signature of Joseph W. Barr who served as secretary of treasury from December 1968 to January 1969...