I acquired recently a Kovrov made SVT-40. Good condition as arsenal refurbished, good stock but heavily contaminated with oil, probably cosmoline and other petroleum distilates. I stripped the finish (shellac, easily wiped out with methyl alcohol), cleaned and degreased the wood with paint stripper, mineral spirits and the heath gun; removed lots of oil but not all (60 years old gun). Oiled it with tung oil to prevent drying, and I'm thinking of putting back the shellac but not sure about it yet. The wood is very light coloured and light, probably beech (this is what I heard), or maybe birch? I think it had no shellac finish originally (look at the darkening on the grip and comb, as handled and aimed); I believe the shellac was put on after refurbishing. Anyone knows more on that? Some pics: as received in the mail: factory logo and year of manufacture on the receiver bridge: the stock after being stripped of shellac, degreased and oiled with 3 coats of tung oil: I like it as it is, I like the patina on the stock; this was a combat rifle and most definitely saw action on the eastern front. I would like to restore it to the original condition, but... was the shellac factory applied or post war restoration? This is the question... Thanks.