My observations as follows:
1) the IZH imports, even the unissued ones, look to have been re-shellac coated AFTER manufacture. All the unissued ones I have owned, even the coveted "gold bayonet" ones, showed more than one shellac if you know what to look for. This is not terrible, but I believe it was done to improve the looks of the rifles and get a better price on the world market, or perhaps it was practise at the arsenal at some point to give them another coat of shellac for preservation purposes - who knows?
2) The Westrifle imports, in MY OPINION, have, in many cases, been recently re-stamped in the wood with reproduction markings around the cross bolt and the factory cartouches in the butt. I've looked at a lot of photos of these in the last few days and they are not consistent with the IZH imported rifles. They don't seem to have multiple-layers of shellac, but instead look to have been stripped or refurbished and only have one layer of shellac on them. For example, rifles that are clearly sandblasted, re-blued and refurb marked on the top cover, somehow have matching factory-correct stocks with crisp new-looking stamps everywhere that do not match the condition of the rest of the rifle, especially their izhevsk-made examples. In MY OPINION - the Russian vendors are tarting them up to make them more saleable. I clearly remember they did this with the 1949 rifles as well, which clearly all had replacement stocks modified from blade-bayonet stocks.