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Source:
Colnect
Issued by:
Uruguay
Function:
airmail
Date:
1937
Issue:
Rio Negro Dam
Denom:
20c
Color:
green
Design:
dam
(1937)
Watermark:
unwmk
Perf:
Catalog value:
Prev:
9/28/1939 8c ltgrn wmk=REPUBLICA O. DEL URUGUAY
Next:
35c
External links:
Colnect 490481..m_on_Rio_Negro
Colnect 490482..m_on_Rio_Negro
