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Source:
Colnect
Issued by:
Colombia
Function:
postage
Date:
5/12
/
1958
Issue:
International Geophysical Year
Denom:
25c
Color:
dark green
Design:
Francisco Jose de Caldas
&
hypsometer
Watermark:
unwmk
Perf:
12
Catalog value:
Prev:
10c blk
Next:
1p dkvio
External links:
Colnect 316973..ophysical_Year
Record of changes