post stamps Ecology Congress of European Security and Co-operation Conference, Sofia S/s imperf bulgaria 1989

and or

1989-10-12

Ecology Congress of European Security and Co-operation Conference, Sofia S/s imperf

format 130x86 mm; perf. imperf; design Alexiev

1lv.

copies 15 000

* LC# - Каталог на СП "Българска филателия и нумизматика"
Mi# - MICHEL Briefmarken Kataloge
Sc# - Scott Postage Stamp Catalog

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bulgaria