Description:50th anniversary of the first artificial satellite
Date of issue: 25.04.2007
Denomination&Quantity: 1.00 Lev - 15 000
Stamp size: 44 x 29 mm
Perforation: 13 1/4 : 13
Souvenir sheet: 86 x 55 mm
Printing process: offset
Designer: Krasimir Andreev