Copper Bladed Mak

[Mark]

Hopefully Andrew can answer the question of the ring metal (I wish it were mine, but its his ).

I found the reference to use of talismans in Thailand (it's in a catalogue written by Khun Nattapat for a museum exhibition several years ago), but it doesn't specify anything about which particular metals were used as talismans. So, nothing new on what significance the copper might have.