State quality mark of the USSR

The State quality mark of the USSR (Russian: Государственный знак качества СССР, transliteration Gosudarstvennyi znak kachestva SSSR) was the official Soviet mark for the certification of quality established in 1967. == Symbol == The sign was a pentagonal shield with a rotated letter K (from Russian word Kachestvo – quality) stylized as scales below the Cyrillic abbreviation for USSR (Russian: СССР, SSSR).

Source: Wikipedia — State quality mark of the USSR (CC BY-SA 4.0)