M 1971 hat badge of enlisted or NCO police personnel of MVD Drying-Up Tanks.
Aluminum, paint; measures approx. 38 mm tall x 66 mm wide.
The personnel of the Drying Up Tanks (MVytrezvitel in Russian) were a branch of Police responsible exclusively for hauling drunks off the streets and detaining them while they sobered up. This branch of service came about as a response to a nationwide drinking problem; the fact that there even was a special insignia for this unit is the testimony to the severity of the problem (in the 70s, on a typical weekend in a Moscow commuter neighborhood, one would find a passed out drunk on about every other city bloc - regardless of the weather).
Excellent, near mint condition.
/Kutsenko, "Hat Badges", fig. 1 page 41/.