Aeroflot Qualification Wings

[Taz]

Much like their military counterparts the Civil Airline Aeroflot used qualification wings for different stages and branches of service.
Shown below are the Pilot qualification wings 1st class, early style (1950's-70's) version which is enamelled and has a screwback and the later (1970's-90's) pinback version.
There are a few points i need to confirm, it seems that the early version had the class 1-4 without a specific emblem for branch of service within Aeroflot.
The later versions, had for example in this case a plane denoting pilot. Others have corresponding emblems to denote navigator,flight engineer etc.
Furthermore are the later versions enamelled or painted or maybe even both versions exist?

Regards Eddie