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Source:
Colnect
Issued by:
Ecuador
Function:
postage
Date:
1936
Issue:
Geodesical Mission 200th
Denom:
20c
Color:
violet
Design:
Ulloa, La Condamine and Juan
Watermark:
unwmk
Perf:
12
Catalog value:
In collections:
used
(Stan Shebs)
Prev:
10c brnorg
Next:
50c red
External links:
Colnect 527950..my_of_Sciences
