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Source:
Colnect
Issued by:
San Marino
Function:
postage
Date:
4/21
/
1982
Issue:
Pioneers of Science
Denom:
20l
Color:
multicolored
Design type:
scientists (1982)
Design:
Archimedes
Watermark:
unwmk
Perf:
Catalog value:
Prev:
450l issue=Europa 1982
Next:
30l d=Copernicus (1982)
External links:
Colnect 67661-..ers_of_Science
