Took mine apart just now. The follower as I said is mark with only a (1) The follower like I said is phosphated but it is milled. Floor plate oddly appears to be in the white or phos and it and the TG (shich is blued) are qnw. Sight is phos and all appears to be script i marked with no SN and E13 or 18 marked. Barrel is AVK BP E13, Trigger is phos marked E18 and O. Sear is hardened and marked e. All the bolt parts are phos except the bolt handle which was swithced at some time with a mauser made one, Rest of the bolt matches the rifle and is phos, My unlce that brought it back, who died before I got it, put it in a sporter stock so no bands are left. My other uncle, his brother in law, said the stock had been smashed.
Seems like it follows the examples in Kreigsmodel .