Colnect-2533-603-Antonio-de-Ulloa-1716-1795-La-Condamine-Jorge-Juan-y-San.jpg
Source: Colnect
Issued by: Ecuador
Function: postage
Date: 1936
Issue: Geodesical Mission 200th
Denom: 5c
Color: green
Design: Ulloa, La Condamine and Juan
Watermark: unwmk
Perf: 12
Catalog value:

In collections: used (Stan Shebs)
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Next: 10c brnorg

External links:
Colnect 527949..my_of_Sciences