You are all welcome. To be sure, I didn't scan any of these. They all come from the following Russian-language site, which is likely pretty tricky to navigate for those of us who don't read Cyrillic:
http://ale07.ru/index.html
This is also the source of many of my other pedagogical contributions (see the threads on bayan, guitar, or several of the children's piano books on the regular Russian/Soviet thread). I figured I would relay the items of interest to Pianophilia as I translated them for my own personal cataloging/research.
Fleubis: I find myself consistently taken aback by the ridiculous amounts of pedagogic material and songbooks that were churned out during the Soviet era. Some of the 'repertoire' and 'concert piece' series (especially for genre-crossover instruments like guitar, bayan, and accordion) have volumes numbering up to #50 and beyond. I particularly enjoy the 'Young Pianist's Library' volumes that have done quite a bit to introduce me to new composers from largely-obscured parts of that massive territory (i.e. the volumes dedicated to Buryatian, Uzbek, Uralic composers etc...). While I'm certain that a lot of the work is probably boilerplate, I enjoy digging up unheard-of composers' biographies and learning of new symphonic cycles, concertos, and other serious works that might be worth a closer look.