Throwing Club from Oceanic region?

[Kmaddock]

Hi All

I just bought this as a Knobkerrie which I am fairly certain it isn't

I assume it it is an oceanic region throwing club
overall length 20 inches or 50 cm
with a head diameter a shade under 6 inches or 15 cm

The shaft tapers to quite narrow at the base with no flair at the but as per most knobkerries I have

The head is cracked but solid and no decoration bar the notches near the head which have been there a long time (are these decoration or functional as they are done rather crudely)

Good hefty weight to the club

Any idea of age origin originality and all other information welcome

Regards,

Ken