Sharing These Soviet Zone pages that are Meticulously put together with some great information about Perforation Varaieties, Glue and Economy Glue various papers and designs and more. Hope they can help others and feel free to add to it. :)
A lot of these series have plate flaws mentioned in both the Michel special and Schantl catalogue. I believe you have 3 of them on the bottom of the first page you show us. I have a few, here are some pictures. If I have time and I can find the rest, I will post a few more pictures.
The first five are mentioned in the Schantl catalogue and number 6 is Michel 1 XI.