On August 1,1927, the uyezds and governorates were abolished and Ostrovsky District, with the administrative center in Ostrov, was established as a part of Pskov Okrug of Leningrad Oblast.
The governorates were abolished as well, and the district became a part of Pskov Okrug of Leningrad Oblast. On August 1,1927, the uyezds were abolished, and Ostrov became the administrative center of Ostrovsky District.
On August 1,1927, the uyezds were abolished, and Ostrov became the administrative center of Ostrovsky District. The governorates were abolished as well, and the district became a part of Pskov Okrug of Leningrad Oblast.
On August 1,1927, the uyezds were abolished, and Ostrov became the administrative center of Ostrovsky District. The governorates were abolished as well, and the district became a part of Pskov Okrug of Leningrad Oblast.