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Stamps of
United States - US offices in China
,
4c
denom
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1 to 2 of 2
postage
1919
1919 issue
ovpted on stamp of
United States
flat plate print
unwmk
p.
11
X
4c on 2c
rosered
Washington
1922
, Jul 3 ovpted on stamp of
United States
offset print
-
4c on 2c
car
Washington
1 to 2 of 2