I'm curious to see if this is a different type of dollar bill.....I'venever seen one with a letterunderneath the date..... Any thoughts? Thanks in advance!
The letter "A" under the 1988 represents the second series of notes made in 1988 as there was a change of U.S. Treasurers after the first 1988 series had been printed. With the change in U.S. Treasurers/signatures during the same year, the second series printed that year had a letter "A" added below the year to indicate that change. More good info directly related to your question here: http://www.uspapermoney.info/general/note.html
The letter "A" under the 1988 represents the second series of notes made in 1988 as there was a change of U.S. Treasurers after the first 1988 series had been printed. With the change in U.S. Treasurers/signatures during the same year, the second series printed that year had a letter "A" added below the year to indicate that change. More good info directly related to your question here: http://www.uspapermoney.info/general/note.html