The Zhao Dynasty, 1,046 - 256 BC. These enigmatic fish have been considered money by some, but there is ample evidence that they were grave goods and/or good luck charms. Here is a lot of three examples, up to 3 1/4 inches in length. The caveat: I am not certain these are genuine. They have great patina, but, well, look 'off' to me. As such they are uber cheap, with no returns. Just $5 for them. Outside the US $10. Just send me a PM.