Armenia 2007 50th Anniversary of Yerevan Mathematician Machines Scientific Research Institute
From Stamps of the World
- Issue Date : 12 March 2007
- Printed by :Cartor Security Printing
- Width : 31.75 mm
- Height : 31.75 mm
- Print Process :
- Perforations : 12.5 x 12.5
- Sheet Layout : Sheet of 10