Another noise maker

[fernando]

Certainly not a hand cannon. It stands upright, with a base slightly wider than its top; and a 'caliber' too large for a gonne. Let's call it mortar; some call it böller.
I bought this one more due to its attitude (read shape). I never realized the walls of these things are so much thicker down by the 'chamber' ... as cannons often are.
Very heavy; 5,3 Kgs.
It would be Portuguese ... in principle. Its age, i don't know; these devices are hard to date. From the XVI to the XVIII century all is possible. Anyone able to narrow this date range ?


.