1915 Imperial marked Westinghouse manufactured Mosin

[clarkmilitaria]

Would it be worth the $140 even if other parts are not Westinghouse?

Another question: In my first post, above the Imperial eagle, is that a Soviet mark? From what I have recently read, the SA on the side of the receiver pictured above means the rifle went through Finland. But in order for that to have happened, the rifle would have been captured by the Finnish as they defended themselves from the Bolsheviks trying to take over Finland in 1917, or taken back to Finland by a Finnish member of the Czarist Imperial Army after the fall of the czar. So, would it have gone through a Soviet arsenal (where the renumbering happened as well) and then ended up captured and in Finnish hands, most likely in 1917?