Allright, this is a VERY early Winchester P-'14 rifle. The Body (Receiver) was made late in 1915, the rifle accepted as new in 1916.
The Birmingham proofs (all that 2.222" 18.5 TONS/" square .303") are from the 1950s, when this rifle was finally surplussed.
The W, of course, is Winchester. They did not produce all that many of these rifles because they were engagd in a lot of other work.... as well as doing the required MODS to the design to adapt it to US production methods AND doing toe tooling for the other plants. They were busy little beavers!
Winchesters are scarce, especially in nice condition. I am restoring W305, a rifle from the second pre-production batch which went t England for approval before production-in-earnest began.
I am VERY interested in that PHAB-2 marking under the wrist of the stock. I have the SAME Marking on a Royal Navy/Royal Marines "stripped" Ross..... and I have PHAB-1 on another Ross. We are thinking this could be Naval or Marines from PRIDDY'S HARD AMMUNITIONING BASE.
It's late now, but I am going to go over the photos again later, VERY carefully.
BTW, that the Dial Indicator is still there but the Pointer of the Dial Sight is missing would indicate that this rifle served also during World War Two. These parts were removed after WWI on rifles which were kept in Service.
Personally, I think this one is WORTH a full restoraton....... but that's me.
Hope this is a little help.