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Source:
Colnect
Sheet:
Issued by:
Trinidad & Tobago
Function:
postage
Date:
7/3
/
1979
Issue:
4th Latin American Geological Congress
Denom:
35c
Color:
multicolored
Design:
Hydrogeology
Watermark:
mult crown & script CA
Perf:
Catalog value:
In collections:
unused
(Stan Shebs)
Prev:
10c d=Geothermal Exploration
Next:
45c d=Petroleum Exploration
External links:
Colnect 546408..dad_and_Tobago
Record of changes