G'day Gav,
               thanks for the conclusive proof, I knew I had seen this design (coin) before and from memory believed I had seen it on an African weapon.
    Strangely, the first polearm has two bands of a zig zag design ....almost identical to the decoration on one of my African spears....go figure  

 .
     Gav, the likely use of lead for the hilt ...is this unusual for a Chinese piece ? Can we assume this is a 'temple' piece ....
 Kind Regards 
                   David