A federated Soviet republic uniting Armenia, Azerbaijan, and Georgia, created in March 1922 to unify the Caucasus following Soviet conquest; one of the four founding signatories of the treaty creating the USSR in December 1922.
Dissolved in December 1936 under the new Soviet constitution, splitting back into three separate union republics: the Armenian SSR, Azerbaijan SSR, and Georgian SSR.
Standard academic essay collection covering the Transcaucasian SFSR and the national movements of its three constituent peoples; no single dedicated TSFSR-only monograph surfaced.