Yep, that was fun. Where did you get that great image of the Massim club?
The good news is now you have an ID from an authority and a provenance of sorts--at least for the raw material. Personally, I still think a western sailor carved it, but so long as we're cheerful about agreeing to disagree, who cares?
The other news is that
Anoxypristis cuspidata is listed as "endangered" in the
IUCN Red Book , so you might have import/export problems if you try to move it internationally.
Fearn