I just traded for a 1943 Tikka barreled round receiver 91/30. It's built on a 1938 Izhevsk receiver and has a Russian re-use prewar 1938 Tula stock. The stock has no shellac on it but kinda looks like it has an oil finish. I can't tell if it was just overagressive cleaning from the previous owner or if it was refinished by the Finnish. Does anybody know if the re-use stocks kept the shellac finish or had an oil finish?