Today I want to share my experience in commemorative USSR coins. Here will be descriptions of all USSR commemorative roubles coins in 1986-1987 years.

1986

1 rouble
   International Year of Peace.
   Diameter: 3.1 cm, circulation: 4 000 000.

   275th anniv. of Mikhail Lomonosov's birth.
   Diameter: 3.1 cm, circulation: 2 000 000.

1987

1 rouble
   175th anniv. of the Battle of Borodino (monument).
   Diameter: 3.1 cm, circulation: 4 000 000.

   175th anniv. of the Battle of Borodino (bas relief).
   Diameter: 3.1 cm, circulation: 4 000 000.

   130th anniv. of Konstantin Tsiolkovsky's birth.
   Diameter: 3.1 cm, circulation: 4 000 000.

   70th anniv. of the Great October Socialist Revolution
   Diameter: 3.1 cm, circulation: 4 000 000.

3 roubles
   70th anniv. of the Great October Socialist Revolution
   Diameter: 3.3 cm, circulation: 2 500 000.

5 roubles
   70th anniv. of the Great October Socialist Revolution
   Diameter: 3.9 cm, circulation: 1 500 000.