Badge "Excellent In The Socialist Competition" Ministry Of Metallurgy And Chemicals.

[Komandir RKKA]

You are welcome!
This is very popular theme among collectors of the former USSR but not known enough on the west.
Some "Excellent in Socialist Competition" badges of different Soviet departments:
Metall and Chemical Building Ministry

[USSR]

Can anybody tell me in which years these badges were made? This Excellent in Socialist Competition badge for Metall and Chemical Building has quit a low number. That is, if it's real of course...