It looks like the sideplates have line border engraving. If so, it looks like a later G grade to me. How could anyone let a gun go to rust like that? Assuming the stock is in decent shape, and the barrels aren't pitted too badly, a clean up wouldn't break the bank, and you would have a wonderful two barrel set. Or, you could just send it to me so you won't have to worry yourself about it

Imagination is everything. - Einstein