it’s an Inca war club.

These three ceramic pieces represent in an extraordinary way
those war clubs known as porras, which consisted of a wooden
shaft with a star-shaped head of solid metal or stone, on the
fighting end. The intent of the artist to realistically reproduce
the original model is so patently marked, that even the orderly
spiral leather which the original arms must have had in order
to facilitate the grip in combat was also accurately represented
with painting.
As much by their size as by their design, these pieces
constitute highly achieved samples of artistic skill and
symbolic representation of objects of everyday use.
The words (above) are from the notes titled “War clubs”,
on display at “Museo de Arte Precolombino”, Cusco, Peru.