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Source:
Colnect
Issued by:
El Salvador
Function:
postage
Date:
11/1
/
1979
Issue:
5th Latin-American Clinical Biochemistry Congress, San Salvador
Denom:
10c
Color:
multicolored
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
10/29/1979 30c issue=International Year of the Child
Next:
25c
External links:
Colnect 662670..Congress_San_S
