Postal history (Soviet Union, USSR 1978)

14 December (Soviet Union, USSR ) within release Postal history goes into circulation Stamp Postal history face value 6 Russian kopek

Stamp Postal history in catalogues
Michel:	Mi:SU 4798

Stamp is square format.

Also in the issue Postal history:

• Stamp - Postal history face value 4;
• Stamp - Postal history face value 6;
• Stamp - Postal history face value 10;