JM stamped Marlin 336. It has the waffle top receiver, no cross bolt safety and the perch belly forend. I've disassembled and cleaned the entire rifle and found the stock is serial numbered to the rifle. It also doesn't have the micro-groove barrel so it would be great for lead cowboy ammo. The only blemish I'd consider is the prior owner had it drilled and tapped for a scope.
Please message me if interested and I'll provide more detailed pictures.