The counting, Process of fitness sorting of banknotes by their condition of use. Through this process, used banknotes are classified as fit or unfit to return into the circulation. See Processing of banknotes. and checking the The condition that a security element of a banknote or security document is genuine. and condition of banknotes, which can also be banded or destroyed. Banknotes can be sorted mechanically by type and Each individual value in a series of banknotes or coins.. Counting machines can count the number of notes as well as their combined value. They can also detect counterfeits and keep electronic records of the number of each note being sorted.