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Source:
Colnect
Issued by:
China, PRC
Function:
postage
Date:
12/1
/
1962
Denom:
4f
Color:
multicolored
Design type:
ancient Chinese scientists
Design:
n2.
Watermark:
unwmk
Perf:
11.5x11
Catalog value:
Prev:
4f d=Tsai Lun
Next:
8f d=n3.
External links:
Colnect 225064..oples_Republic
