Third issue.
A significant number of provisionals are associated with the Civil War of 1918β1922. At that time, across most of the country there was no stable central authority, many regions became independent, and due to devastation and war there was significant inflation. Frequent tariff changes and the inability to supply the postal network with stamps of the required denominations led to periodic revaluations of their on-hand stocks in accordance with instructions from the People's Commissariat of Posts and Telegraphs of the RSFSR, which did not provide for any overprints. However, locally, some post offices nevertheless applied overprints to the revalued stamps being sold, or simply added handwritten inscriptions. All these stamps are characterized by an extremely simple overprinting technique.