yes it is more complex than my other, on my second, they are like mekugi, like brass tenons. that's why I didn't go there to disassemble it but I take note. I show you the barrel of the other Teppo as well as my last two Tsuba too, I also don't know if I have the wooden mask bought in Miyajima 13 years ago, I had fun transporting it to in Tokyo.