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Source:
Colnect
Issued by:
Colombia
Function:
airmail
Date:
10/29
/
1969
Issue:
20th Anniversary of Colombian Social Security Institute
Denom:
20c
Color:
yellow green & black
Design:
Watermark:
unwmk
Perf:
13.75x14
Catalog value:
Prev:
6/18/1969 5p multi issue=50th Anniversary of 1st Colombian Airmail Flight imperf
Next:
70c multi issue=13th Latin-American Neurological Congress
External links:
Colnect 355129..ity_20th_Anniv
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