For a start, bro, we need PICTURES!
Also ALL the markings, words, and little squiggly lines on the gun. And with a double, if you remove the barrels, there may be markings UNDER the barrel, and on the flat part of the receiver covered by the barrels.
There WAS an ERA, inexpensive SXS, made in Brazil, similar to, and maybe related to the Boito shotguns.
What we have here is... failure- to communicate.