A very nice example of the Soviet Medal "For Impeccable Service" - 1st class medal for 20 years of service. Enamel is in great condition, almost all of the original silver finish remains. Working pin and catch on the reverse of the aluminum mounting device. 
 
The Medal "For Impeccable Service" (Russian: Медаль «За безупречную службу») was a Soviet military award for long service awarded to deserving members of the military personnel of the armed forces of the USSR, of the Interior Ministry of the USSR and of the Ministry for the Protection of Public Order of the USSR, to recognise ten, fifteen and twenty years of faithful and impeccable service to the state.