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Issued by:
Vietnam
Function:
postage
Date:
9/17
/
1991
Issue:
25th Anniversary of Posts and Telecommunications Research Institute
Denom:
3500d
Color:
multicolored
Design:
Watermark:
unwmk
Perf:
13.25x12.75
Catalog value:
Prev:
200d perf=13
Next:
12/19/1991 200d issue=Golden Heart Charity for Disabled People perf=13
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