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Source:
Colnect
Issued by:
United States
Function:
airmail
Date:
6/21
/
1991
Issue:
Antarctic Treaty 30th
Denom:
50c
Color:
multicolored
Design:
Watermark:
unwmk
Perf:
11
Catalog value:
Prev:
5/17/1991 40c issue=William T. Piper d=William T. Piper & Piper Cub
Next:
10/12/1991 50c d=Bering Land Bridge
External links:
Colnect 101813..tes_of_America