Well, it really isn't, some sandpapering needs to be done and then it's going to be re-blued, and spare parts are readily available, and the bolt return spring housing being fixed into the stock isn't that big of a deal, it just makes the reassembly a bit of a hassle.
Edit: Oh, the part where I mentioned that
The bolt return spring housing has broken off, a common occurrence in these old guns.
I forgot to mention that the bit that has broken off is now fixed into the stock.
The wood needs to be refurbished, probably going to sand it down and then use oil to refinish it.
The rust isn't that bad on the receiver, really.
All the internal parts are there as well.
And that's where the guide rail has broken off, it's a half-moon shaped rail that tends to break in heavy use. Browning later strengthened it by making it wider, and that requires a larger cut in the bolt, so it won'tfit in this one. All the other parts are in good condition tho.