This flask was found in a old surgeons house about 15 years sgo that was a super hoarder of many one of a kind art objects.

This flask appears to be one of a kind out of his collection.

Closest Library research shows this is a Religious Ceremonial  Ayahuasca drinking flask from the Amazon basin.

A sun ritual flask.

Will ship with only good insurance.

Again this is one of a kind library says possibly used in the Amazon Rain Forest.