ZHOU: Anonmyous, 1122-225 BC, AE 'fish money' (24.6g), 114mm, bronze cast in shape of fish left, Fine to VF. These are mentioned in Coole, Jen, and other references with ambiguous statements regarding their possible use as money. Fish are "lucky," and there are rituals involving the throwing of fish effigies into water to bring that luck, so there is the possibility that they might have been purely religious.
Estimate: 75- 125 USD