Hi Fernando,
I like it too!!!!
. I was never convinced that the bell mouth
on blunderbusses contributed much to the spread of shot contrary to appearances and I guess the maker of this one may have been of a similar opinion hence the inclusion of decoration inside the barrel. Having said all that I'm sure the intimidating look and the volume of shot must have been very effective at close quarters as in deck clearing etc, I certainly would not like to be on the receiving end of a volley. Another nice inclusion for your collection of things that go "boom".
My Regards,
Norman.