Bulgaria 1994 Europe Series - Discoveries and Inventions

From Stamps of the World

  • Issue Date: 29 April 1994
  • Designed by: K. Konstantinova
  • Print Run : 1,000,000 each
  • Print Process:
  • Perforations: 14 x 13¾
  • Stamp Size :
  • Bulgarian Catalog Numbers : 4133/34
  • Michel Catalog Numbers : 4121/22
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