Your rather nice badge is a Guard Leader on Duty badge of the VOKhR. This is a civilian state guards organisition. The organisation existed in the soviet era and I think continues today.
There is a really good website on uniform caps which has some information on their work;
http://www.undertheredstar.com/vokhr.htm
They are not rare badges but I think they are rather nice and make a great display item.
Regards fred