Series: 90th Birth Anniversary of O,K, Antonov Catalog code: Mi: UA 180-183, Sn: UA 246a, Sg: UA 150-153 Subject: Aviation | Anniversaries and Anniversaries | Famous people | Aircraft Date of issue: 1996-09-14 The size: 80 x 56 mm Colour: Multicolor Format: Hitch Edition: Commemorative (anniversary) Perforation: 13½ Printing: Offset