Berlin Brigade insignia

[Taz]

Can anyone tell me more about this insignia ?
where, by who was it worn ?? Any pics of this one being worn ??

Olivier,
I,ve had a look in some old Catalogs that I had in the shelves.
There is some Tiny pictures of your Patches in Black and White.
For the shoulder Patch there was no description only that it,s from the Berlin Brigade.
For the arm/sleeve badge it says Berlin Brigade, for Soviet Military Forces serving in Germany, old form. So not just for Berlin?
Because it,s Black and White I can,t tell if It,s the same Colour or not but the writing in the middle is different.
Next Badge on the page is the same shape and has the same picture in the middle but there is no outer ring with wording, and it says below Berlin Brigade New Russia, Does this Brigade still exist?
Probably more Questions than answers but I,ll keep looking.
Eddie