Abkhaz Autonomous Soviet Socialist Republic
The Abkhaz Autonomous Soviet Socialist Republic, abbreviated as Abkhaz ASSR, was an autonomous republic of the Soviet Union within the Georgian SSR. It came into existence in February 1931, when the Socialist Soviet Republic of Abkhazia (SSR Abkhazia or SSRA), originally created in March 1921, was transformed to the status of Autonomous Soviet Socialist Republic within the Georgian SSR. The Abkhaz ASSR adopted its own constitution on 2 August 1937. The supreme organ of legislative power was the Supreme Soviet elected every 4 years and its Presidium.
Source: Wikipedia — Abkhaz Autonomous Soviet Socialist Republic (CC BY-SA 4.0)