This item was purchased from the estate of the late John Piscopo as a decorated bronze axle hub from the Warring States period of ancient China. I have not seen an axle hub before with a form like this one. There is no place for an attachment pin. According to Mr. Piscopo's records, it was purchased from Tony Allen in the year 2000. It is a very unusual piece. It measures roughly 6 cm in height and is approximately 6.5 cm across at the widest part. There is a heavy patina but the metal is solid and stable. Don't let this rare piece go to some other lucky collector.