Hey guys, my Father-in-law just picked up a "new" shotgun and I was wondering if someone might be able to help me identify it. It is a SxS 12 Ga. 2 3/4" chambers w/ 30" tubes and about 40-50% bluing, exposed hammers, double triggers, spring loaded firing pins(rebounding?). It locks up nice and tight and has hand cut, diamond pattern checkering on the for arm and pistol grip. The right lock plate says, "MACHINE MADE". The left lock plate says, "NEUMANN BROS." Inside the right side receiver it has the S/N, #3055 and "M2". The top of the sight rib is marked, "BELGIUM LAMINATED STEEL". The bottom of each BBL is marked with, the number "12" over the letter "C" inside a diamond, then the number, "181" next to that. Next to that is a vertical oval with a crown on top and inside the oval is,"E", next line, "LG", next line is a 5 point star(*). Then there is a mark about an inch away from the rest that looks like a vertical line on top of a square diamond. The bottom of the right BBL has the matching S/N, (3055) and then the letters, "JS" not far from that. We were looking for any history, value and most importantly a replacement butt stock. Any help would be greatly appreciated, thank you.