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Source: WNS
Issued by:
United States
Function:
postage
Date:
6/16
/
2011
Denom:
forever
Color:
multicolored
Design type:
American scientists
Design:
Asa Gray
Watermark:
unwmk
Perf:
11
Sort pos:
2
Catalog value:
Prev:
forever d=Melvin Calvin
Next:
forever d=Maria Goeppert Mayer
Catalog numbers:
WNS US070.11
External links:
Colnect 412301..tes_of_America
WNS US070.11
Record of changes