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Source:
Colnect
Issued by:
Romania
Function:
postage
Date:
8/30
/
1999
Issue:
20th Century
Denom:
7300l
Color:
multicolored
Design:
heavy water diagram &
H. C. Urey
Watermark:
unwmk
Perf:
13.25
Width:
42.00
Height:
27.00
Catalog value:
Prev:
3/31/1998 3900l d=T Vuia 1872-1950 aircraft
Next:
9/24/1999 7300l d=Otto Hahn discoverer of nuclear fission
External links:
Colnect 203873..r-20th_Century