bill
手形 — Institutions
A paper saying when and how much will be paid.
SUD Copper Coin1812
Kingdom of the Two Sicilies, Ferdinand II, Piastra (120 Grana), 18341834
The paper itself has no value, but if the writer is creditworthy, it can be used for payment. ⚠ Furthermore, the moment the paper is made transferable to a third party, the bill begins to function as currency.