Accordingly, after the formation of the Soviet Union, the People's Commissariat for Posts and Telegraphs of the USSR was created in 1923 instead of the similar agency of the RSFSR.

[1] In 1924, the People's Commissariat for Posts and Telegraphs set up a mobile postal service, providing it to rural localities.

[4] Over the years of the pre-World War II five-year plans (1929–1940), there was a rapid development of the Soviet communication system and industry.

In 1939, construction of a high-frequency three-channel line between Moscow and Khabarovsk (8,600 km) provided dependable communication between the USSR central regions and the Far East.

In 1941, a 12-channel line between Moscow and Leningrad was put into operation that meant the concurrent transmission of 12 telephone calls over a single pair of wires.

[5] During the Great Patriotic War of 1941–1945, steady communication was organised between the General Headquarters of the Supreme Command and the fronts.

[5] Up to 70 million parcels per month were delivered to the Soviet Army front from the rear under extremely difficult and often very dangerous conditions.

Additionally, the Ministry was responsible for issuing postage stamps and postal stationery (envelopes, postcards, etc.

Since 1929, the Soviet government had started paying more attention to this revenue source and selling more stamps abroad.

The Soviet government was not an exception among the other states in terms of deriving a profit from the postage stamp trade.

Some countries began to give philatelic issues their special attention in order to derive a sizable part of the national income from the sale of stamps.The Ministry included two major departments:[7][9] Under the auspices of the USSR Ministry of Communications and Soyuzpechat, the following periodicals and publications were issued: