It is a combination of one letter and one number and can be found on the front of the note.įor these larger sheets, the note position is identified by columns and rows rather than by quadrants. The letter of each indicator matches the second letter of the serial number on the note. 11dp3dt crampsĬapital letters following the series year appear when there is a significant change in the note's appearance.
The series year indicates the year in which a new design was approved by the Secretary of the Treasury, or the year in which the signature of a new secretary or treasurer was incorporated into the design. The first letter of the serial number corresponds to the series year. A unique combination of eleven numbers and letters appears twice on the front of the note. Learn about these note identifiers by clicking on the image below.
