1985 Sc 5587 10th Anniversary of European Security and Co-operation Conference Scott 5386

1985. 10th Anniversary of European Security and Co-operation Conference.
Catalogs: Scott 5386, Standard Collection 5587, Michel 5535, Yt 5239.
Issued on: July 25, 1985.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 20 Russian kopek.
Quantity: 2,820,000.