Railway visor cap - worker's fantasy or regulation?

[Ser-g]

Genuine is a quite subjective term in this parts of collecting.

I for one find all caps made to be used by the soviets as genuine.
I narrow this down to a period of 1969-1992.
I tent to see the cap separate from the add-on's like badge and cord, for they can be replaced easily.

I have no assumption i know it all, but tent to think i know a bit.
This bit i use to help people where i can and educate my self further.
This educating i do for a part through this forum, on which there can be found people that are more knowledgeable.

So i dare any who can educate me and others to respond and give us the why and how. Just so i can be collecting and knowing more about it.