Germany-West 1990 25th Anniv of Youth Research Science Competition

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  • Issue Date : 15 February 1990
  • Designed by : F. Ludtke
  • Printed by : State Printing Works, Berlin
  • Print Process : Lithography
  • Perforations : 14
  • Stamp Size :
  • Print Run : 27,750,000
  • Paper :
  • Gum : PVA
100pf