Hi everyone. After a huge amount of searching I have found a little more info on this gun. This was posted a by a gentelman on a chat forum:
Arturo Mino Armi was a very small workshop in Gardone Val Trompia Brescia, he was very passionate in his trade and used holland type mechs, I have spoken recently with one of the best Small workshop gun builders Mr.Giuseppe Pirlo , to many considered a Maestro in the side by side construction, and he told me that he knew very well Arturo Mino and is knowledge, handcraft and creativity in the buidlings of gun, he did actually start as an aprentice by A. Mino. The Gun in your Posession its an Ideal type model 70cm barrels,1* right barrel, 4**** left barrel, what we call a woodland gun, excellent for woodcock and a good allrounder. There isnt many of these guns left and are part of the italian gun making history.
The gun itself its superb, construstion and steel used, second to none, as you will probably noticed the ingraving and the blued steel on the holland mech type are delightfull.