I have a Model '97 Serial nbr 948565, it is identified as being made in 1942. It has no military markings anywhere. It has the correct length and is marked as being a CYL Bore. It is a break down model and when I became the owner it had Yellow Paint Stencil numbers across the stock . I don't recall the nbrs. but wish I had left them there. Removed them with some Acetone and polished it up. This was before I knew anything about military shotguns. My guess it was probably law enforcement connected, prison, or possibly security. I have actually shot skeet with this gun, but you have to be quick. LOL

john