70th anniversary of the birth of M.V.

70 aniversario del nacimiento de M.V. Keldysh (1911-1978)
OwnerJose Roberto Lara
ObservationsCatalog code:Mi:SU 5036, Sn:SU 4906, Yt:SU 4774, Sg:SU 5091, Zag:SU 5086
CountryRussia
Face value4 Kopek Ru
Measures26 x 37 milímetros
Year1981
StateUsed
StatusExhibition - Non-transferable
CategoryCommemorations
FormatVertical
Color Multicolor
Other informationPerforated stamp
visualizations97