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Source:
Colnect
Issued by:
Czechoslovakia
Function:
postage
Date:
6/22
/
1979
Issue:
Man and the Biosphere
Denom:
1.80kc
Color:
multicolored
Design:
Watermark:
unwmk
Perf:
11.75
Catalog value:
Prev:
60h
Next:
3.60kc
External links:
Colnect 123126..SCO-MAB-UNESCO
Record of changes