IMHO, that is a fake. I am not sure what it really is, but there is no such thing as a U.S. Model 1930, and the markings are entirely wrong for a Model 1903. I have no idea what the receiver really is or who could have done the marking. It does not appear to be pantographed, more like hand engraved, which would be impossible with a real M1903 without annealing the receiver ring.
I strongly suggest you not, repeat NOT, fire that rifle pending further investigation. It could be some kind of dummy "collectors" rifle or a cheap cast receiver with some real parts.