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Source:
Colnect
Issued by:
Sri Lanka
Function:
postage
Date:
1/25
/
1991
Issue:
50th Anniversary of Institute of Chemistry
Denom:
1.00r
Color:
multicolored
Design:
Watermark:
unwmk
Perf:
Catalog value:
Prev:
12/26/1990 10.00(r) issue=postal service 175th
Next:
5/17/1991 0.75r issue=Vesak 1991
External links:
Colnect 527445..e_of_Chemistry
Record of changes
