Rock Island 1903, possible NM rifle?

[damienslc]

So, It's probably likely that this isn't a NM rifle so I'll give up on that theory. I did see a "J" and "E" stamping which, when I looked it up, indicated it was assembled by Springfield. I believe it is stamped on the underside of the barrel near the receiver. The stock itself only has two circled "P"s behind the trigger guard which I guess means it's been rebuilt.

Also, the underside of the bolt is stamped "NS" beneath the safety lug, and there is a strange stamping on the underside of the bolt handle where it joins the bolt. Looks like a b0 and what might have been a circle below or above it.

I double checked on the stock, and it's a type 4 post 1917. Pre-1917 stocks didnt have the second recoil bolt, this one does. Probably a bad picture on my part.