1. A method of counting currency documents, each currency document having disposed thereon or therein coded data including a plurality of coded data portions, each coded data portion being at least partially indicative of an identity of the currency document, the method including, in a sensing device: sensing at least one coded data portion for each currency document; generating, using the sensed coded data portion, indicating data at least partially indicative of the identity of each currency document; and, transferring the indicating data to a computer system, the computer system being responsive to the indicating data to: determine, using the indicating data, a determined identity for each currency document; determine, using each determined identity, a value for each currency document; and, count the currency documents using the determined values.