Yes a more recent piece but still cool to have. The prominent cross in the gap { I read some where that is used to pin an opponent down at the neck

} you could well be right might indicate a missionary collected piece?. A lot of US mission work in the mid 20th century in amazon regions. It is a strange collecting world. Older Fijian clubs are so common and expensive were as good oldish South American stuff is not easy to find. I would very much like one of these. I have missed out over a few decades once or twice. They all seem to be from the US and also being rather long adds to the shipping to the UK. Strangely at least 3 I think of my Amazon club came from AUS. I suppose missionaries and miners are the first in remote parts in the world for better or worse.
https://www.youtube.com/watch?v=jjuh_FW-0P0