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Source:
Colnect
Issued by:
Bulgaria
Function:
airmail
Date:
11/18
/
1958
Issue:
International Geophysical Year
Denom:
80st
Color:
green blue
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
80st perf=11
Next:
2/28/1959 2l bl&och issue=Luna 1 perf=11
External links:
Colnect 399035..ophysical_Year