Opium for the dha guys

[Mark]

I've never seen anything like it, but the decoration is what you often see on some Shan dha. I wonder if the copper tube is supposed to stay in the "scabbard," as a lining to the wood? So when you pull out the knife you have the little spike sticking out of the scabbard? What is that residue on the end of the spike? It looks gummy, meaning it might be poppy resin.