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Issued by:
North Korea
Function:
postage
Date:
3/26
/
1958
Issue:
International Geophysical Year
Denom:
20w
Color:
blue green
Design:
Rouletted
Watermark:
unwmk
Perf:
10
Catalog value:
Prev:
20w imperf
Next:
40w
Record of changes