Here is an advertisement for Russian PW tinplate, posted by Stephen Ellcock on his FB page. It is interesting in that it fairly accurately depicts the locomotive, rolling stock and station available in the 1950's. Apparently, no boys are interested in playing with the layout.
Dave's Trains has a good discussion on these trains, with pictures: http://www.davestrains.com/sovarchives.html#ARCHIVES
I see these trains occasionally at meets, but they're usually a little outside my price range. Nevertheless, I find them interesting.