I dont know, But I now own that guitar, and its a very fine and good guitar , with some minor issues. It plays very well and sounds good too. I think the "Parwi" label is intact, though it looks as if something is missing.
I can send You pics for your web if You like.
The Migma label has the numbers III/23/3 O 23 249 10
no, this number is only the "Druckgenehmigungsnummer". Each smallest printed paper in GDR had to have such a number. Usually the number contains the year of permit. So it only could say "not before ...". But in this case I cannot recognize the year, may be 1949, is that possible?
yes I will see if I can make a photo over the weekend. I have seen exactly the same numbers on two more migma kurt seifert labels and on one migma signed forstner.