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Source:
Colnect
Issued by:
China, PRC
Function:
postage
Date:
12/1
/
1962
Denom:
20f
Color:
multicolored
Design type:
ancient Chinese scientists
Design:
n7.
Watermark:
unwmk
Perf:
11.5x11
Catalog value:
Prev:
10f d=n6.
Next:
20f d=n8.
External links:
Colnect 225069..oples_Republic
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