Japan, Korea, China thing?

[Tim Simmons]

Starting this again as the title might be more appealing to some well informed members being oriental specialists. As far as I have found this seems to be a form of " Shaku Baton "

http://www.vikingsword.com/vb/showthread.php?t=26601

[Tim Simmons]

Possibly a " tanbō " ?

[Tim Simmons]

The second paragraph after the list of names mentions the Octagon in Japanese martial arts so could relate to a tanbo?

https://tensokuryu.com/blog/2017/06/13/the-octagon-revisited/

[AndreasM]

Clubs of this form and shape do not exist in East Asia.

The earlier identification of Fiji seems rather correct. Not only for its form but also because of the inlay. Here is another example from that region:

[Tim Simmons]

Solved Fijian Ulas.

[Peter Andeweg]

You found it! A Fijian Ula, a type of throwing club. The bone or shell inlays are done later, often by collectors and counterfeiters to spice them up.
Patina-wise this example looks 19th century with 20/21th century bone inlay.

[Tim Simmons]

Interesting to compere with some African status sticks. The inlay being a twentieth century addition in reality is only an unproven opinion.