cssr para/airborne unit sleeve badge

[25 unor 1948]

there are 7 know types of coulured background it is further unknow what the colours stand for it will proberly be 1st brigade till 7th but not sure about it

[Taz]

Another two Airborne sleeve badges.
I agree, the background colour should indicate the unit.

The third one is the same as above with black backing material.
Described as Nášivka výsadkářů ČSLA.
(československé lidové armády- ČSLA)

Regards Eddie.